«RTS Un» is a Swiss public television channel that broadcasts in French. It is owned and operated by the Radio Télévision Suisse (RTS), a public media organization headquartered in Geneva.

The channel features a wide variety of programming, including news, documentaries, dramas, entertainment shows, and sports. It also broadcasts live events, such as concerts, sporting competitions, and political debates.

«RTS Un» is known for its commitment to quality programming and its focus on Swiss culture and society. It also broadcasts a significant amount of international content, including films, series, and documentaries.

The channel is available on terrestrial television, cable, and satellite throughout Switzerland. It is also available online through its website and mobile app.