Socrates

"The only true wisdom is in knowing you know nothing." 

Socrates

"To find yourself, think for yourself."

Nelson Mandela

"Education is the most powerful weapon which you can use to change the world."

Jim Rohn

"Success is nothing more than a few simple disciplines, practiced every day." 

Buddha

"The mind is everything. What you think, you become." 

Monday, 1 February 2021

Jamini Roy painting style

 Jamini Roy, a Bengali painter and Padma Bhushan awardee, is one of the 'Nine Masters' whose works have been recognised by the Indian Government as art treasures due to their artistic and aesthetic value. 

Jamini Roy was a renowned artist in India, known primarily for playing an influential role in combining traditional Indian and Western art styles to create unique and complex works.  Roy's rejection of the then modern style of painting and his foray into the realm of Bengali folk paintings marked a new beginning in the history of Indian modern art. 

Childhood and Early Life

Jamini Roy was born in the year 1887 at Beliatore village in the Bankura district of West Bengal. Roy was born into an affluent family of land-owners. His father, Ramataran Roy, resigned from his government services to pursue his interest in art.

 In the year 1903, when he was only 16 years old, Jamini Roy left his village and enrolled himself at the Government College of Art. There, he received education under Abanindranath Tagore. Tagore was the vice principal of the college and trained Roy as per the prevailing academic tradition. Roy finished his education in 1908 and was given a Diploma in Fine Arts. Roy was true to the art that he learned and started painting in accordance with the Western classical style. But he straightaway realized that his heart belonged to some other form of art. While there, he learned academic drawing and painting in the Western tradition. After graduating, Roy adopted the simple forms, flat colors, and humble paints of Bengali folk artists.      Jamini Roy  inspired  from the Bengali culture and lifestyle. He was also influenced by the Kalighat paintings.

Kalighat Painting

 He had three main goals that he wanted to achieve when it came to his artwork.

  • 1.  He wanted to make art a form of entertainment that could be easily accessible to people from all walks of life.
  • 2.  He also wanted Indian art to essentially develop its own unique identity. 
  • 3.  Lastly, he wanted to capture the culture that he saw around him and depict the simple lives of the people he saw. 

 His association with Abanindranath Tagore , the art activities with the Indian Society of Oriental Art generated his selective taste for "Oriental" painting. 




                                                                              Abanindranath Tagor

Jamini Roy's work from the 1910s and 1920s show the rich variety of his training and choices. He produced, on the one hand, a series of academic-style portraits and figural compositions in oil. On the other hand, a set of romantic studies of the tribal Santhal women of eastern India that carry echoes of Bengal School mannerisms.

 Soon afterward he began experimenting with a new Post-Impressionist colorize genre of landscapes, using daubs (ஒன்றின் பரப்பின் மீது அடர்த்தியாக மற்றும்/அல்லது அக்கறையற்ற முறையில் வண்ணக் குழம்பு, சேறு முதலியன பூசு)and stipples of thick pigment(சாயப்பொருள்)

 The decisive turn in his career came in the late 1920s and early 1930s, when the artist, overwhelmed by a "folk" nostalgia, rejected his bourgeois (conventional attitudes).art-school-trained identity and retreated into an idealized world of the rural craftsman. This phase was marked by his periodic return to his village home in Beliatore, by his abandoning of oil painting, and by his new practice of grinding and mixing his own earth colors. This went hand in hand with his first forays (a sudden or irregular invasion)into the pictorial tradition of the patachitras, taking him from a direct recreation of these folk motifs (a decorative image or design)to the gradual invention of his own linear, decorative, colorful style.

It was in the year 1925 that he heard his true calling outside the famous Kalighat temple in Calcutta. After observing a few Kalighat paintings, displayed outside the temple, Jamini instinctively knew what his preference and interest was, when it came to art. He knew that the Bengali folk art could be used as a stone to bring down not two but three birds –a way to simplify and portray the lives of common people; to make his art accessible to all; to bring back the glory of Indian art. From that moment onwards, his paintings started reflecting the Kalighat style of art.

A solo exhibition held at the Government Art School, Calcutta, in 1929, signaled the arrival of this new Jamini Roy. Thereafter, a number of shows organized in Calcutta set the stage for the making of the "master" and his unique "folk" style.
patachitras

During the 1930s and 1940s, Jamini Roy's paintings serve to represent the passage of new modernist and nativist phases from its earlier academic and nationalist phases. His new "folk" style, drawing heavily on the idioms of  local art forms (the rural patachitra, the Kalighat , the clay figurines, and the terracotta temple sculptures of Vishnupur, stands out in this period as a singular example of Indian primitivism, with Jamini Roy as a bearer of a New Left cultural ideology. 

By the early 1930s, Jamini Roy became fully conversant with the lines of the Kalighat idiom and produced more number of art works. In 1938, his art works became the first Indian paintings to be displayed at a British-ruled street in Calcutta.

Jamini’s thought process began to bear fruit in the 1940s when his works were bought by average middle-class Indians. What surprised him though was the interest shown by the European community towards purchasing his paintings. With the passage of time, his paintings were only reflecting the indigenous art of Kalighat painting, along with the terracotta's of the Bishnupur temple. In the following years, his works were exhibited at prestigious shows in places like London and New York City. By now, Jamini Roy had accomplished what he had intended to do when he first switched over from the Western classical styleto the folk art of Bengal.

  



Characteristic of Jamini Roy's work -Jamini Roy’s Style

 Characteristic of Jamini Roy's work is the diversity of his stylistic experiments, ranging from his bold dark-lined brush drawings to his play with mosaic effects and the scheme of Byzantine icons. 

Equally distinctive are the different themes he delved into Santhal archers and drummers, baul and kirtan singers, or his series of paintings on Christ, the Krishna lila, the Ramayana, and some of his most striking portraits of the 1940s, such as those of Rabindranath Tagore and Mahatma Gandhi. 

He captured the qualities that are a part of the native folk painting and recombined them with those of his own. He fused the minimal brush strokes of the Kalighat style with elements of tribal art from Bengal.

 Abstract art uses a visual language of shape, form, color and line to create a composition which may exist with a degree of independence from visual references in the world.    Abstraction indicates a departure from reality in depiction of imagery in art. This departure from accurate representation can be slight, partial, or complete. (Abstract art is considered as the purest form of expression, it allows an artist to communicate their feelings without any restrictions.)  


A painting from the Ramayana series. Image from Flickr by Nathan Hughes Hamilton

Jamini Roy’s paintings that belong to the early 1920’s reflect the influences of the Bengal School of art. Initially, he came up with some excellent paintings that marked his entry into the Post-Impressionist genre of landscapes and portraits.

 Later in his career, several of his many paintings were based on the everyday life of rural Bengal. Then, there were numerous ones revolving around religious themes like Ramayana, Radha-Krishna, Jesus Christ, etc. Jamini Roy also painted scenes from the lives of the aboriginals called Santhals. Throughout his works, his brush strokes were largely bold and sweeping.

Around mid-1930s, Jamini Roy moved away from the conventional practice of painting on canvases and started painting on materials like cloth, mats and even wood coated with lime. He also started experimenting with natural colors and pigments derived from mud, chalk powder and flowers instead of European paints.

Of all his themes, his feminine images-of gopinispujarinis, housewives, and mothers- emerged as the most favored, archetypal Jamini Roy motif: one that most powerfully captured the middle-class imagination of his times and made Jamini Roy a household name in Bengal cultural circles.

 

In the years around the Second World War and India's independence, the artist reached a high point of fame, as he came to be hailed by Bengal's left-wing cultural elite as the most creative and socially progressive of Indian painters. 


Prominent Works

·      Ramayana – Art lovers and critics would unanimously agree that his 1946 masterpiece ‘Ramayana’ is his magnum opus. Created using Kalighatpata style, this particular work of his is a series of paintings portrayed across 17 canvases. Roy used vegetable colors and pigments derived from natural elements to narrate his version of the great Indian epic. Sarada Charan Das, the successor of K.C. Das, bought the entire series, which now adorns the walls of his residence ‘Rossogolla Bhavan.’ The residence boasts of the artist’s largest private collection with 25 of his original paintings. Jamini Roy also came up with individual episodes of Ramayana, some of which are now displayed in places like the National Art Gallery of India and the Victoria Memorial Hall.

 

·      Dual Cats with one Crayfish - Jamini Roy, during his lifetime, came up with a number of paintings portraying cats, which are now collectively called as the cat series. This particular art was created in the year 1968. The painting looks somewhat restrained when it comes to the usage of colors but has a distinctive style to it. 

Dual Cats with One Crayfish
Painted against a thatched background are two cats who hold one crayfish in their mouths. In this painting, Roy used colours like turquoise blue, red and black. The cats' bodies are drawn in a surreal manner and their eyes and whiskers have been emphasised.

·      Bride and two Companions – Painted in the year 1952, this particular piece stands out for its majestic indigo of Bengal. Critics described this painting as having a meaning and reason attached to every aspect of it.  

 

·         Crucifixion with Attendant Angels – This painting depicts the crucifixion of Jesus Christ. Opaque watercolor is used on a material that is made out of woven palm fiber. 



·         Krishna and Balarama – Lord Krishna is depicted along with his brother Balarama in this painting. Roy had used distinct earthy colors against a majestic red color backdrop. 
 

·      Santal Boy with Drum – Jamini Roy came up with a number of paintings depicting the Santal tribe as the people belonging to this particular tribe fascinated him. This particular painting was created in the year 1935.

·      Krishna and Radha Series – Roy created a series of paintings depicting the colorful life of Radha and Krishna. He even painted the life of Krishna along with his other Gopis (girlfriends).

 

·      Makara – ‘Makara’ is a strange looking sea animal mentioned in the mythological tales of ancient India. Roy created this painting in the year 1945. While most of his paintings revolve around people, one might wonder what prompted him to paint this mythological creature.

·      St. Ann and the Blessed Virgin – All his paintings that represented the Christian iconography had Hindu idioms, making his works that much more interesting. This particular painting had three versions and was created in the year 1945.

·      Seated Woman in Sari – This is arguably one of the most recognizable works of Jamini Roy. It was created in the year 1947.

Recognition-Awards

Throughout his glittering career, Jamini Roy won many prestigious awards. Some of the prominent ones are given below:

Viceroy's Gold Medal – In the year 1934, he received this prestigious gold medal for one of his paintings at an all India exhibition. 

Jamini Roy is one of the most significant modernists in the world of Indian fine arts of the 20th century and was also honored with one of the highest civilian honours of the country-- Padma Bhushan in the year 1955. 

Jamini Roy’s art works have been displayed in museums all over the world. Among the most important museums that showcase his paintings, Victoria and Albert Museum in London are widely recognized by art lovers.Roy’s works can be found in the collections of the Victoria and Albert Museum in London, the Harn Museum of Art at the University of Florida, and the National Gallery of Modern Art in New Delhi, among others. 


In 1955, he became the first Indian painter to be honored with Fellow of the Lalit Kala Akademi by Lalit Kala Akademi, Indian Government's National Academy of Art. Fellow of the Lalit Kala Akademi is the highest honor conferred by the Academy in the field of fine arts. 

 In the year,1976, a final consecration came after four years of his death on 24th April 1972 , his works were granted the status of "national treasures" by the Government of India.His works were included among the ‘Nine Masters’ by the Archaeological Survey of India. The ‘Nine Masters’ are considered as art treasures because of their artistic and aesthetic value.

Personal Life

He fathered four sons and a daughter. He spent most of his life in Calcutta and dedicated almost all his time to his work. Jamini Roy was a simple person and led a non-materialistic lifestyle. He wasn’t too concerned about making money and was more focused on taking the glory of Indian art to the world stage. This perhaps will remain as one of his greatest legacies. Jamini Roy’s died on April 24, 1972, a few days after he celebrated his 85th birthday.


Sunday, 31 January 2021

Editorials


An Editorial is a statement or article by a news organization, newspaper or magazine that expresses the opinion of the editor, editorial board, or publisher.

 An editorial is an article that presents the newspaper's opinion on an issue. It reflects the majority vote of the editorial board, the governing body of the newspaper made up of editors and business managers.

 An editorial is a short essay that shares an newspaper opinion on a current event or social issue. . Editorials often focus on controversial issues with widely different viewpoints.

Requirements for article length varies according to each publication's guidelines, as do a number of other factors such as style and topic. An average editorial is 750 words or less.  It is usually unsigned. Editorial writers build on an argument and try to persuade readers to think the same way they do. Editorials are meant to influence public opinion, promote critical thinking, and sometimes cause people to take action on an issue. In essence, an editorial is an opinionated news story.

 Editorial Writing guidelines 

Editorials are generally printed either on their own page of a newspaper or in a clearly marked-off column, and are always labelled as editorials to avoid confusion with news coverage. They often address current events or public controversies. 

Generally, editorials fall into broad types: The goal of all editorials is to share an opinion and persuade an audience, there are editorial style variations. The different types depend upon the goal of the article and can be divided into four categories:

Types of editorials. 

  • News/Interpretive: An interpretive editorial explains and provides background information on an event or issue. This type of editorial aims to raise awareness and discuss how the topic is relevant to the reader.
  • Policy/Critical: The critical format focuses on the various causes of a problem and suggests a solution. For example, you might critique a policy that relates to your issue to advocate for a specific change.
  • Social/Persuasive: This type of editorial appeals directly to the reader and encourages them to take action. The persuasive format focuses on the reader's ability to change a situation by following your advice.
  • Special. /Praising: A praising editorial shows appreciation for a person or organization based on their involvement in an issue

Part of Editorial

Introduction: Introduction, body and conclusion like other news stories.  The introduction builds a reader's interest in the topic and gives an overview of the issue.Education Policy
Argument: An objective explanation of the issue, especially complex issues. The argument presents your opinion along with reasons why the audience should agree with you
Evidence: The evidence supports your argument with facts, research or anecdotes. A timely news angle 
 Opinions from the opposing viewpoint that refute directly the same issue the writer addresses The opinions of the writer delivered in a professional manner. Good editorials engage issues, not personalities and refrain from name-calling or other petty tactics of persuasion
Counterargument: All editorial writers should establish credibility by presenting a fair review of the perspectives involved. While a praising editorial might be mostly positive with a brief reference to an issue, a critical editorial needs to address the opposing perspective directly. Alternative solutions to the problem or issue being criticized.
 Refutation: After sharing the counter-argument with a reader, the writer must explain why that argument is not accurate or relevant. Refuting the counterargument allows you to promote your point of view while still seeming fair.
Conclusion: In the final para, A solid and concise conclusion that powerfully summarizes the writer's opinion.

Many magazines also feature editorials, mainly by the editor or publisher of the publication. Additionally, most print publications feature an editorial, or letter from the editor, followed by a Letters to the Editor section. Most editorial pieces take the form of an essay or thesis, using arguments to promote a point of view. 

 


 

Saturday, 30 January 2021

History Television

 Television is a significant in development of human civilization. It is deeply ingrained with Arts, Science and Commerce. Television is a system for converting visual images (with sound) into electrical signals, transmitting them and displaying them electronically on a screen. Television has become an intrinsic part of our life and established an important place in our lives. Television is one of the most popular medium of education and mass entertainment. It is a combination of both visual and audio medium.x. Generally TV is an instrument for converting visual images (with sound) into electrical signals, transmitting them and displaying them electronically on a screen.

History Of Television 

TV is quite recent in India.  TV telecast can given, the first transmission of TV experimentally started in 1920 in USA.  In 1930 a TV station started in New York, in England BBC had its own TV Station. But due to the second world war TV transmission was hampered in entire globe. After  the world war II , TV station started working and in western countries wide spread transmission occurred. By 1948, there were 48 TV stations in 25 cities in USA and they had 2 lakh TV sets in a period of 10 years. Around 512 TV stations came into existence Canada, Japan, European countries which saw many technical advances.


India received its first bunch of TV sets towards the end of 1959 from the help of UNESCO; it was an initiative from Government of India.  UNESCO donated 20,000 dollars for having TV sets in community centers in  India.USA also donated many types of equipment, Philips India Company donated a low cost transmitter and later on Delhi had its experimental TV station to transmit programmes within 40 km radius. To help viewers watch these programmes 180 telecubs were organized. Every teleclub has a TV set donated by UNESCO, these centers developed as centre from community education and other activities. There used to be two days TV programme in a week and every programme was of 20 minutes duration. These programmes were prepared at Delhi in an advanced TV station.

In 1961 UNESCO conducted a study on effect of TV programme in Indian population. The report was encouraging and in the same year school TV programme started. School teachers in Delhi were trained with the help of TV programmes. This helped those schools who had no organized science labs. In India the TV viewership slowly increased. An entertainment programme was started on 15 August, 1965, it was transmitted which was initially for one hour daily and included some news items.

Government of Germany established a studio to prepare programmes on 26th January 1967 the first agriculture based TV programme Krishi Darshan was transmitted. Delhi, UP and Haryana could view it in 180 rural centres. This programme was liked by farmers all around. Subsequently the Delhi TV transmission programme was increased from 1 hr to 1:30 hrs. On 15thAugust 1965, the transmission time was increased to two hours on Sundays. It was on 3rd December 1971 English news was broadcasted. In Oct 1972 Bombay TV station was established, by 1973 Srinagar and Amritsar TV station came into existence and transmitted by their own programmes. The same year Pune started telecasting Bombay station programme by relay. In 1970 there was a TV station in every corner of the country. In 1970, 23,000 TV sets were imported. In 1975 this number increased to more than one lakh. Calcutta, Madras, and Lucknow established TV stations in 1975. Modernised TV sets where available in India and by 1976 the TV world in India got a new name Doordarshan, 54 high transmitters, 371 low powered transmitters, 69 very low powered transmitters and 14 ordinary transmitters could cover almost 63 per cent of population.

SATELLITE INSTRUCTIONALTELEVISION EXPERIMENT (SITE)

In 1976, UNESCO conducted an experiment on satellite communication in India. The success of Satellite Instructional Television Experiment or SITE proved that television transmission would be possible and useful in India. 

For the first time educational programmes were beamed through satellite in India. The programmes were shown in 2400 villages in 20 districts of six Indian states of Andhra Pradesh, Bihar, Odisha, Karnataka, Rajasthan, Madhya Pradesh. According to 1971 census of India, the states having the most number of backward districts in the country were selected. Later on with help of transmitters 2500 villages and small towns of 6 states were able to view programme. Hyderabad, Kurnool, Medak, Mehbubnagar, Andra Pradesh, Gulbarga, Raichur, Bijapur of Karnataka, Muzzafarpur, Chaparan, Saharsa, Darbhanga of Bihar, Raipur, Bilaspur and Durg of MP. Sambalpur, Dhenkanal, Boudh, Kandhmal of Odissa, Jaipur Kota, and Sawai Madhopur of Rajasthan, were the districts who got the benefit of this progamme.

The transmitted programmes were of mostly of two categories:

 Educational Television (ETV) and Instructional Television (ITV). 

The main purpose of these programmes was to educate the rural mass. Educational programmes prepared by students of schools and colleges of were attractive and creative. Daily programmes included education, agriculture, family planning, health for duration of around four hours. Through the satellite the programmes transmitted were for one video channels and two audio channels and hence these programme were transmitted in two different languages. In the school time these programmes were broadcasted for one half hour. On holidays it was used for training teachers, more then one lakh primary school teachers were being trained through these programmes. 

Instructional programmes were basically meant for illiterate elderly people. They were broadcasted for 2.5 hours during evenings. The programmes were related to health, education, hygiene, improved agricultural practices and important national events. These programmes were transmitted in four languages like Hindi, Odia, Telugu and Kannada. In addition to this a Hindi news bulletin of 30 minutes duration was being transmitted in 4 states. 


CABLE AND SATELLITE TVTRANSMISSION

In 1975 Satcom-1, one of the first generation geostationary comsats built by RCAAmericon was crucial in expansion of TV through cable in towns and villages. In 1990 cable TV brought an undeniable change in Indian Television scenario. Earlier cable TV was telecasting only in Mumbai but later it became popular even in small towns.  The antenna is faced towards the direction in which the signals are being received. Cable TV operators set up a control room in one place and through wires or cable connection to viewers TV provided television signals. The cable operators transmit programmes, movies, serials, music according to the demand of the viewers. The viewers paid one time connection charges and a monthly rent to the cable operators. 

Satellite Transmission Services 

We all know our solar system has eight planets, many have their satellites. But man by his own scientific knowledge has managed to create artificial satellites for purpose of communication. These satellite are rotating in the solar system in their own orbit and are helping send signals and information to the earth. Therefore, in general terms satellite are electronic devices situate far from earth are working as source of communication for earth. Most important is that satellite thousands of km far away from they send information.  Each satellite through its own transponders receives and expands it and sends back the signals to the earth. The satellite overcomes the geographical barriers and can send signals to every nook and corner of earth. At low cost to far away places on Earth or isolated places


DTH 

DTH means Direct-to-Home it is the receiving of satellite signals directly to the TV set from direct broadcast satellite. This new generation satellite TV signal reaches every home through a small circular antenna. In 1994, Hughes Communication of USA started the DTH services called the DirecTV. DTH broadcasting uses the upper portion of KU band transponders in a satellite to send hundreds of channels for down linking on earth.


Indian government permitted the reception and distribution of satellite television signals in November 2000. Dish Tv launched first DTH service in India on October 2, 2003. Indian national broadcast organisation Prasar Bharati started DTH service in India in 2004. Later on private play as like Reliance Big TV, Zee Dish TV, Airtel, DTH, Videocon, D2H, Tatasky, Sun Network, etc. expanded their services. Doordarshan transmitted through ‘GSAT-15’ satellite from 93.5 East. DD is giving free service of 80 channels to the viewers. Aspect TRAI data, by 2013, there are 6 private companies and one government organisation serving to 110 crore TV by DTH, six private parties are giving service to 56 crore Indian consumers.

IPTV

IPTV refers to Internet-based Protocol Television where internet is used to deliver TV programs & Videos that are either live or on demand. IPTV is a system where digital television service is delivered to the subscriber through Internet protocol technology via the medium of broadband or internet connection.


It is slightly different from digital video that is accesIPTV is Internet Protocol Television, in other words this arrangement makes possible to send TV signals through internet instead of traditional satellite or cable. This can make possible for a viewer to see the programme or movie before it is fully downloaded.

IPTV refers to Internet-based Protocol Television where internet is used to deliver TV programs & Videos that are either live or on demand. IPTV is a system where digital television service is delivered to the subscriber through Internet protocol technology via the medium of broadband or internet connection.

It is slightly different from digital video that is acces

 IPTV has three modes of services: 

1. Live television. In live television, customers can view transmission or telecast

2. Time-shifted media  In time shifted television the view can seen the programme after telecast, like subsequent day

3. Video on demand (VOD) . In the third category, the viewer can see it as and when desired.

 In 1995 for the first time IPTV service was started by Zudith Estin and Bill Larry co companies, through Precept software. By Unix and Windows a viewer can see programme in his mobile anywhere and anytime. It comes to consumer via mobile network. The first mobile TV company Panasonic first introduced it in 1970 by its model TR-001. The same company had 2nd model of MTV -1 in 1977. The 2"inch screen mobile TV set was able to receive signal in many countries. It was sold in USA at 400 dollars. With 3G and 4G in the market, TV programme can be viewed in mobile telephones.

SpaceX

Elon Musk's Starlink fleet includes thousands of satellites that are designed to provide low-cost broadband internet service from low Earth orbit.SpaceX is sending thousands of satellites into space to deliver internet access, but the question of when Starlink will start sending its services back to Earth is another matter.

The company has sent up four batches of 60 satellites each, operating at a low orbit to offer latency of lower than 20 milliseconds and access speeds of around a gigabit. It's a far cry from the low speed, high latency satellite internet currently on the market, and it could help rural and underserved areas get connected at speed.

SpaceX looks set to meet that six-launch deadline this year, based on current progress:

One user has been able to already get online with Starlink. Elon Musk claimed to send tweet through the service in October 2019.

GENERAL SERVICE AND COMMERCIALTV

The general people oriented programme through Electronic Media is called Lokseva service. In our country Prasar Bharati is the public transmission organisation. Working under the Ministry of Information and Broadcasting the organisation includes Doordarshan and Akashvani and works as an autonomous body. It was established in 23rd November 1997 to grant autonomy in transmission service like some other countries the government enacted for this in 1990 and telecast scenic structure on September 15, 1997. The commercial service started in 1st January in Electronic media service in India. Advertisement preferred to show their advertisement in TV because the transmission was widespread. So many rules were framed in connection with that advertisement. The programmes should not hurt the viewers and it should not truly sensitive issue like morality and religious thoughts which satisfied the customers and business community

1. What is Television?

 What are the benefits of Television? 

2. Discuss about History of Television.

 3. Write how TV programme is transmitted by cable.

 4. What is satellite? How TV services are transmitted via satellite?

 5. How TV broadcasting is done through DTH services?

 6. What is IPTV? 

7. What do you understand by commercial transmission?

4G- Fourth generation mobile network.

 Satellite – which received signals from the Earth and also sends back signals. 

TV station - Office of television, equipped in the transmitted gadgets and high transmitted to link with satellite.

 UNESCO - United Nations Educational, Scientific and Cultural Organisation Programme—Various programmes which are telecasted in TV.

source