SRF zwei is a German-language Swiss television channel run by the public SRG SSR broadcasting group.The channel was launched in 1997 as 'SF 2', originally only to offer SF 1 programming in later hours. It subsequently became a youth-oriented channel, airing programs oriented to a teen audience, such as American TV shows. It is the second of the three national German-language channels in Switzerland (the others being SRF 1 and SRF info).