The veteran funnyman is dead. (Find an obit here.) I lament because Poston could make me laugh so much, especially when working with Bob Newhart. Although he had a long tenure on "Newhart," when I think of Poston I mainly remember one of his guest-starring turns on "The Bob Newhart Show" where his love of silliness and his verve made a terrific contrast to Newhart's more deadpan style. Poston brought Newhart over to the silly side, too.