One of the stars of the highest-rated sitcom on TV may be leaving the show. People's TV Watch is reporting that Charlie Sheen is parting ways with the hit Monday night series Two and a Half Men. Here's what the site's inside source said.

"Charlie's just done," says a set source. "And he's quietly telling his friends he's not coming back."
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Sheen's contract for the show is up after this season and it was said that the actor turned down the network's latest offer.

"He wants to move on," says a friend of the actor, whose contract is fulfilled after he tapes this season's 22nd episode. "Leaving is 100 percent his idea."

A network representative, who wouldn't comment on the matter but another source close to the show said, "negotiations are ongoing and nothing has been determined."