LOS ANGELES (Reuters) - ?Jeopardy? host Alex Trebek is taking a break from taping episodes of the U.S. television quiz show to recover from surgery to remove blood clots on the brain, he said in a video message released on Thursday. ?The prognosis is excellent and I expect to be back in the studio taping more ?Jeopardy? programs very, very soon,? Trebek, seated in what appeared to be a living room, said in the video. ?Jeopardy? is produced by Sony Pictures Television Sony, a division of Sony Corp, and distributed by a division of CBS Corp.