More changes at CBS. The network says it's giving the late night slot currently held by Steven Colbear over to media mogul Byron Allen. He'll be paying for his talk show Comics Unleashed to air under a so-called Time Buy deal that will be starting in May.Of course, this follows the cancellation of the late show with Steven Coar and comes as late night television has been hit hard by plummeting ratings and reduced advertising revenue. So, after 11 years, Cobar will be saying his goodbye. It also ends a show ...