Charlie Sheen is not the biggest The Big Bang Theory enthusiast.

Charlie Sheen's feud with Chuck Lorre is fairly well documented, as his criticism of Lorre and CBS, followed by his other set of controversies, led to his departure from Two and a Half Men. Additionally, the actor's departure left the cast and crew of the sitcom in limbo, infuriating one The Big Bang Theory star, who later expressed his feelings about the whole fiasco.

Although the actor admitted that he sent a note to the creator of The Big Bang Theory to settle things, he did not hold back from sharing his views on the acclaimed sitcom.

In addition to starring in Two and a Half Men, Charlie Sheen also made a guest appearance in Chuck Lorre's other acclaimed sitcom, The Big Bang Theory, in episode 4 of season 2, The Griffin Equivalency. However, he doesn't have many nice words to say about the Jim Parsons-led show that was slated to run after his Anger Management, which started a year after his departure from Two and a Half Men.