“30 Rock” (9:31 p.m., NBC): The parade of big-name guest stars continues on “30


November 20, 2008 at 12:00a.m.

“30 Rock” (9:31 p.m., NBC): The parade of big-name guest stars continues on “30 Rock” as Steve Martin drops by. He plays an eccentric businessman who becomes enamored with Liz. But apparently there’s more to him than meets the eye.