Elsewhere, The Hollywood Reporter said Sheen met with senior executives at rival network Fox last week for talks. The actor sent a cryptic Tweet over the weekend reading "perhaps a new lair...? A Fox and a Warlock? epic" accompanied by a picture of a Fox television logo.

Sheen was fired from "Two and A Half Men," the most-watched TV comedy in the United States, on March 7 after a stream of public insults toward its producer, Chuck Lorre. Earlier, the actor had been the subject of numerous media reports about his wild partying, and he spent time in drug and alcohol rehab, leading Warner Bros.

Celebrity website Radaronline.com on Monday also reported unnamed sources as saying that CBS chief executive Les Moonves wanted to get Sheen and "Two and A Half Men" back on the air, and had spoken with the producer and co-creator Lorre -- the target of much of Sheen's ire.