In 1954, a team at the Machine and Electrotechnics Institute in Sofia (today called the
Technical University of Sofia) started experimental
television broadcasting with two antennas (one for sound and one for image) on the roof of a building near the
Vasil Levski monument in the city, after having previously conducted successful cable test transmissions. These experimental broadcasts aroused the interest of the Ministry of Communications, which decided to build a broadcasting tower in Sofia, with a state-controlled channel to air from it. The new channel started with an unofficial broadcast on 1 November 1959, and made its first official broadcast several days later with the live coverage of the 7 November
manifestation, commemorating the
Russian Revolution of 1917. The experimental channel of the MEI did not air anything but a test chart on that day, although it did show a greeting to the new Sofia Television Station three times after 19:05. The MEI channel continued to operate until late 1960, when the team started working on the future introduction of color television. The new channel, later referred to as "Bulgarian Television" (BT) used the
OIRT standard of 625 lines and 25 frames per second. It also used the D/K audio system, which was generally done to prevent reception of Western European stations in
Eastern Bloc countries. Public attention was quickly caught by the new medium, and the number of bought and registered television sets increased gradually. In 1960, a powerful 20
kilowatt transmitter was installed at
Botev Peak, covering a large area of the country. BNT, from 1964, began broadcasting news, programmes and movies in monochrome to serve the rising number of viewers in Bulgaria. Later, more transmitters and retranslators were placed in various cities, towns and villages around the country. Programming was controlled and influenced by the
Bulgarian Communist Party-run government in this time, as was usual in the Eastern Bloc. The first popular program were the news, which were titled "Around the World and at Home" ("По света и у нас", with "at home" meaning in this case "in our country"), a name which is used to this day. The news' trademark "spinning globe" opening, first animated in 1961, is also still used (albeit highly modified). Other popular shows started around this time were the children's block "Good Night, Children" ("Лека нощ, деца", still in use), television theatre programs, the various sport events which were broadcast live from around the world, and music programs like the regular New Year celebration shows. Foreign programming in the early years was limited to mostly
Soviet Union productions, as well as some direct rebroadcasts of Soviet television programming. In 1972, the first color broadcast was made, again of a manifestation. The
SECAM color system was used, because
PAL was used in most western countries (except for
France, where SECAM was invented). After several years, the entire programming was broadcast in color. In 1974, the second channel of the Bulgarian Television was launched, with the original channel being called simply "first channel". Later, they were given on-screen logos and were named "
BT1" ("БТ 1") and "
BT2" ("БТ 2"). In the late 1980s, some western programming was allowed, including
Pink Panther cartoons and the television series
La piovra (
Октопод) and
Escrava Isaura (
Робинята Изаура).
Ivan Garelov's
Panorama and
Kevork Kevorkyan's
Vsyaka nedelya talk shows/
news magazines were among BT's most popular programs. With the fall of the communist rule in 1989, the two channels changed dramatically. They started airing a lot of
US films and TV series, one of the first being
The Flintstones (
Семейство Флинтстоун). Their names were also changed, BT 1 became Kanal 1 (Channel1) (Канал 1) and BT 2 became
Efir 2. The television organisation's name was changed to
Bulgarian National Television. In the 1990s, BNT changed the color television system to
PAL, while keeping compatibility with older TV sets by using the DK audio standard (on such sets, only
black-and-white picture is seen). Efir 2's frequencies were sold in 2000 to
News Corporation for the country's first over-the-air national channel:
bTV. In 2008, Channel 1 was again renamed to
BNT 1. The second programme started again in 2011 under the name
BNT 2. It merged the regional
BNT programmes. Privately owned television channels started to appear immediately after the regime change. Most were associated with a cable television (
CATV) network run by the same parent company. Around 1994–1995 private over-the-air broadcasters also appeared, but they usually only operated within a single area.
Nova Television and
7 Dni TV (
7 дни, meaning
7 days) were two of the first such channels, available only in
Sofia. After
bTV took over
Efir 2's frequencies, another competition selected
Nova Television, already popular in cable networks around the country, as the second privately owned national channel in Bulgaria. The authorities currently refuse to license further analogue terrestrial channels (including local ones), until
DVB-T broadcasting is started.
Digital terrestrial television in Bulgaria The
Bulgarian Telecommunications Company provided one experimental
DVB-T transponder in Sofia since 2004. First regular digital broadcast started on 1 March 2013, with a plan to terminate analog broadcasting on 1 September 2013. The Simulcast period (time between digital broadcast switch-on and analog broadcast switch-off) allowed people time to buy new
integrated Digital TVs or
set-top boxes. Standards chosen are DVB-T and MPEG4 AVC/H.264 compression format, while DVB-T2 would not be used for now. On 30 September 2013, the analog broadcasting was officially terminated, leaving the country with 96,2% of the population DVB-T broadcasting coverage. == Cable ==