Schweizer Fernsehen (SF; "Swiss Television") is the German-language division of SRG SSR, in charge of production and distribution of television programmes in Switzerland for German-speaking Switzerland. It has its head office in Zürich. Its most viewed programme is Tagesschau (news), daily at 7:30 pm. It was formerly called SF DRS (Schweizer Fernsehen der deutschen und rätoromanischen Schweiz; "Swiss television of German and Romansh Switzerland") until 2005. On 1 January 2011, Schweizer Fernsehen and Schweizer Radio DRS began the process of merging the two entities into Schweizer Radio und Fernsehen (SRF). On 16 December 2012, the merger was complete, with SF and SR DRS adopting the SRF name to their television and radio stations. History 1939: First test transmissions of television 1964: Introduction of advertising 1968: Colour transmissions begin 1984: Introduction of teletext 1984: Launch of 3sat, in collaboration with ZDF in Germany and ORF in Austria 1997: Launch of SF zwei 1999: Launch of SF info in the Zürich region 2001: SF info begins broadcasting to the whole of German-speaking Switzerland 2005: SF DRS becomes SF, accompanying a major re-brand of the network. 2007: Launch of HD suisse in 720p quality (in co-operation with TSR and RSI) 2012: HDTV transmission (not all programmes yet) of SF 1, SF zwei and SF info; HD suisse was closed in return Television channels SRF 1 SRF zwei SRF info See also Television in Switzerland References External links www.srf.ch Swiss Broadcasting Corporation Defunct television channels in Switzerland Mass media companies of Switzerland Publicly funded broadcasters Television networks in Switzerland German-language television networks German-language television in Switzerland Television channels and stations established in 1958 Television channels and stations disestablished in 2012 1958 establishments in Switzerland 2012 disestablishments in Switzerland