| Country | Switzerland |
|---|---|
| Programming | |
| Language(s) | Italian |
| Picture format | 720p HDTV (downscaled to 576i for the SD feed) |
| Ownership | |
| Owner | Radiotelevisione Svizzera di lingua Italiana |
| Sister channels | RSI La 2 |
| History | |
| Launched | 18 November 1958 |
| Former names | TSI (1958–1997) TSI 1 (1997–2009) |
| Links | |
| Website | http://la1.rsi.ch/ |
| Availability | |
| Terrestrial | |
| Digital | (ceased on 3 June 2019) |
RSI LA 1 (la uno, formerly TSI 1) is one of two television channels produced by Radiotelevisione Svizzera di lingua Italiana for the Italian-speaking community of Switzerland. LA 1, which can be received in all parts of the country, is a generalist channel with a schedule encompassing news, entertainment, drama, cinema films, documentaries, and sport.
As well as being transmitted digitally throughout the Confederation, LA 1's programmes are also receivable on cable and encoded, via satellite.
