|Picture format||1080i HDTV (downscaled to 16:9 aspect ratio 576i for the SDTV feed)|
|Owner||Alpha Satellite Television S.A.|
|Sister channels||Alpha TV Cyprus|
|Launched||27 September 1999|
|Former names||Alpha Sky (27 September – 24 October 1999)|
|Digea||All over Greece at local frequencies|
|Alpha||ALPHA TV LIVE|
Alpha TV is a Greek free-to-air channel, being one of the biggest stations in Greece. The station features a mix of Greek and foreign shows with an emphasis on information. The studios are located in Kifissia and Pallini. Alpha TV is owned by Alpha Satellite Television S.A. In Cyprus, private broadcaster Sigma TV used to broadcast a number of Alpha's programs. In the past, public service broadcaster CyBC used to broadcast Alpha TV programs. In 2015, Alpha TV Cyprus was founded and it broadcast the Alpha TV Programs and others of its own. Alpha Cyprus now is one of the highest-rated Cypriot channels.
When the channel was called Skai TV, it was written using Greek letters. It was Latinized and changed to a blue font in 1999 when Tsotsoros bought it from Giannis Alafouzos. In September 1999, it became Alpha-Sky before changing to its present name in October of the same year. The logo was retained despite the changes in the channel's name.
In 2006, the logo was changed to Alpha, the first letter of the Greek alphabet, to reflect the channel's popularity. The font letters in 2003 changed and a circle was added over Alpha, but the two As (alphas) remain. In 2005, a new version was introduced and is coloured with red. The logo was updated prior to the launch of the 2007-2008 season.
In December 2008, Dimitris Kontominas sold a majority share (66.6%) of Alpha TV to Luxembourg media company RTL Group. Kontominas will continue to be involved with Alpha as he still owns 33.4% and has been named the president of the new holding company called Alpha Media Group.
In March 2009, the company made significant changes to the news programming output. The afternoon news show has been cut to 15 minutes in duration and now airs at 13:00. The main evening news has also moved from the highly competitive slot of 20:00 and instead broadcasts at 19:00.
On 5 January 2012, RTL Group announced that they had reached an agreement to sell their share to minority owner Dimitris Kontominas, making him once again the full owner of the channel. The deal was finalized by the end of the first quarter of 2012.
In the summer of 2018, some of its shows moved to Star Channel facilities and on October 30, the purchase of 50.1% of his shares by the Vardinogiannis group was announced, which later acquired the remaining shares, making him the full owner.
In mid-2022, Primos Media, owned by an investment group in Luxembourg, acquired half of the channel's shares, with the other half and management remaining with the Vardinogiannis group.
Alpha TV Cyprus founded in 2015. A year later, in April 2016, begins operations. Alpha Cyprus broadcasts across the country. The channel broadcasts Alpha Greece programs, and also new Cypriot programs. Now, Alpha Cyprus is one of the highest-rated channels in Cyprus, with a 13.5% share.
Alpha Sat is the international service of the channel of the same name for the Greek diaspora. It broadcasts its program in Asia, Africa, Australia, New Zealand and North America. Alpha Sat launched in Australia in May 2002 and in June 2008 in New Zealand. In June 2012, UBI World TV ceased operations, and as a result, Alpha Sat was temporarily unavailable to viewers in Australia. In January 2013, the channel re-launched via TV Plus, an upstart satellite provider.
In North America, Alpha Sat launched in May 2007 in the United States on the DirecTV platform. On 1 January 2011, Alpha Sat moved to a rival satellite platform Dish Network.
On May 14, 2013, was officially added to the CRTC's approved the list of foreign services, allowing the channel to expand into Canada. Odyssey, who sponsored the application to get the channel on the approved list, is the official Canadian distributor of the channel. Alpha Sat officially launched in Canada on 30 July 2013, via Rogers Cable and Vidéotron. It is also available on Bell Satellite TV and Bell Fibe TV.