Well "Launch" might be overstating it a bit, by the sounds of it they're partnering with Zone and rebranding Zone's channels and bringing their back catalogue of shows with them.
Hopefully they'll keep the channels free to air and take them a bit more up market from what they have been.
From Digital Spy
CBS is to launch six channels in the UK later this year after establishing a joint venture with Chellomedia.
The six CBS-branded channels will replace Chello's Zone bouquet and will be the UK home for 70,000 hours of programming from CBS Studios International's library.
"This UK partnership marries our channel expertise with one of the world’s largest libraries of high quality and globally popular programming," said Shane O'Neill, president of Chellomedia and chief strategy officer at parent company Liberty Global. "We are delighted that CBS and Chello Zone are entering into this prestigious partnership on our UK entertainment television channels."
Chello's Zone channels are available in the UK on digital cable and digital satellite.
Hopefully they'll keep the channels free to air and take them a bit more up market from what they have been.