|Launched||26 March 1977|
|Slogan||Deux fois plus de plaisir (Twice the fun)|
|Sister channel(s)||La Une, La Trois|
|Website||Official site of La Deux|
|RTBF DVB-T (FTA)||Channel 2|
|Numericable (Flanders)||Channel 32|
|Numericable (Wallonia)||Channel 2|
|VOO Digital (Wallonia)||Channel 502 (HD)|
|Belgacom TV (VDSL)||Channel 2|
On March 26, 1977, RTB launched a second television channel called RTBis, which only broadcast on Monday and Wednesday from 8 pm to 10 pm airing programs aimed at a restricted audience, such as Walloon-language plays and cultural or educational programmes, but also reruns of successful series. Although it was officially created to broadcast regional programs produced by RTB's two regional TV centers (Charleroi and Liège), adult education programs and service sections, the second channel aimed to occupy the old network of black and white transmitters of the first channel, converted to color, so that no commercial station could claim it. RTBis relayed RTB1 programs most of the time, which made it attractive by broadcasting popular of soap operas, movies, variety shows and game shows, although it mostly tried to be complementary, without being specialized, by releasing space and time for full relays of events such as figure skating, tennis tournaments, and the Queen Elisabeth Competition. 
RTBF renamed it Télé 2 at the end of 1979 and it adopts an event-based schedule mainly focused on sports.
On October 16, 1983, a wind of 130 km/h damages one of the 315-meter-high (1,033 ft) RTBF pylons in Wavre, which deprives the access of the channel to 100,000 viewers for one year.
The RTBF activity report submitted in 1984 to the Parliament of the French Community presented several options concerning the future of Télé 2. It was a question of making it either a pay television channel or of reinforcing it in its own right in the regional dimension, either to make it a sports, event and entertainment channel, or to make a "sport events" channel time it valued RTBF1's own production at peak times.
Télé 2 disappears on March 20, 1988 to leave its channel to the new channel Télé 21.
On March 21, 1988, RTBF launched Télé 21 on its second network, a new second full-fledged channel on 30 November 2012 that took its name from the youth radio station Radio 21, whose spirit and dynamism it wanted to capture on television. It no longer relayed the first channel, except for their news simulcast with sign language.
In the autumn of 1989, Télé 21, whose ratings fluctuated from high to low (from 16 to 18% to less than 0.85), is repositioned as the channel of events and the repeats of very expensive programmes that a good part of the public could not follow on RTBF1. It also rebroadcast the main evening news of the first channel at 10pm. All its staff was transferred to RTBF1 and RTBF hopes to save 100 million francs.
At the beginning of 1992, the RTBF general director, Robert Stéphane, submitted to the board of directors the idea of remodeling Télé 21, whose audience was moribund, by associating tele 2 it with Eurosport or Canal J. He then contemplates the break-up of Télé 21 into three channels: a cultural one, a regional one and a sports one. Arte 21 would broadcast the cultural programs of the Franco-German channel Arte, but with Belgian cultural opt-outs. Also, during the Queen Elisabeth competition, the evenings would be RTBF opt-outs. Euro 21 would be a European regional that would concretise FR3's approachment with RTBF, but the FR3 news slots would be replaced by the rebroadcasting of the regional news bulletin and by RTBF's Journal Télévisé. Finally, Eurosport
On 1 November 2001, Carine Bratzlavsky was designated to draft a reformatting of the channel. Bratzlavsky had been production coordinator of Arte-Belgium, the interface created between the RTBF and the team of the European cultural channel, since 1995. Previously Bratzlavsky was in charge of the second channel of the RTBF, at the time called Télé 21. In December 2001, while working on the RTBF news program schedules for the start of January 2002, the date of 21 March is advanced to re-launch the new version of La Deux. However, following the resignation of the director-general of RTBF, Christian Druitte, doubts were raised about the timing and a delay was considered. In March, the information was confirmed: the new La Deux would be launched in September, and September 2 was finally fixed as the launch date. The aim was to break the image unmethodical or catchall, La Deux, giving it a strong identity, and making a channel of its own. The channel was renamed La Deux instead of La 2, and adopted a new round logo. The exterior of the ident is fully reviewed, and plays on the colours to distinguish between time slots for children (yellow tones), adolescents (greens) and adults (mauve and purple tones). The whole thing is accompanied by a sound design and ident produced by Marc Moulin. Besides maintaining old programs, such as Ici Bla-Bla (for children), many new programs are produced. The show G'nôme, aimed at 9-14 years, followed by Tu passes quand tu veux (produced by Barbara Louys and hosted by two newcomers: Maureen Louys and David Antoine), whose target audience are teenagers. Also note: the debut of Screen (movie block), Clips en ligne, or to Extratime (dedicated to urban or indoor sports, martial arts, etc.). The show also aired the French TV channel Téva's programme Sex in the TV.
On 26 January 2004, together with RTBF's main channel La Une, La Deux changes its look and logo again and reorganizes its programming in complementarity with La Une. In December 2005, the channel switches to 16:9 format completely.
In 2007, La Une, La Deux, La Trois and RTBF Sat were the four channels from the RTBF.
On 15 February 2010 RTBF Sat ceased transmission.
In 2014, La Une, La Deux, La Trois and Arte Belgique are the four TV-channels from the RTBF.
La Deux's programming consists of talkshows, local dramas, dramas from the US and the UK, news, sports, movies, current affairs and also youth programmes, complementing RTBF's main channel, La Une. La Deux is also considered to be the equivalent to its Flemish (Dutch-language) counterpart, VRT Canvas, which also follows the same programming structure.
Following the arrival of Yves Bigot, former director of entertainment for France 2, as the program director of RTBF, the programming of the channel has undergone a revamp with the following characteristics:
The channel which previously lacked an identity and variable programming now runs on specific themes:
Prior to the launch of La Trois on 30 November 2007, La Deux previously simulcast its main channel La Une's 19:30 news bulletins in sign language. Now, La Deux no longer simulcast its main channel La Une's bulletins.
From 1994 to 2000, La Deux aired JT Soir, alternating with its sister channel, La Une on some days, which La Une also broadcast this edition as a rerun, prior to closedown.
In 2000, JT Soir began broadcasting daily on RTBF La Deux and has continued to do so today. Since 2006, La Deux aired Le 12 Minutes. Every night, it is presented by Eric Boever.
On 21 March 2011, as part of RTBF's major revamp in their news broadcasts and new intros, La Deux later premiered another bulletin for this channel, Le 15 Minutes, which is currently presented by Ophélie Fontana and Jonathan Bradfer, and it is broadcast at 19:00.