Nehocha31 Which one do you mean, the French or the German Version. The German Version is part of all TV packages offered by Swisscom. You cannot cancel individual channels. You can change the providers, but all other providers in Switzerland also include this channel! Btw this channel is Free to Air, so you don’t pay anything for it.
The situation is different with the French version, which is part of pay TV packages; here, too, you cannot cancel individual channels, but you can cancel the respective package.