Wednesday, April 9
THE SECOND BILL COSBY SHOW (NBC, 9-10 p.m.).*Wearing a long white beard, Cosby becomes Noahark-building problems and all; beardless, he's back in his boyhood Philadelphia with friend, "old weird Harold," and Brother Russell.
Thursday, April 10
CBS NEWS SPECIAL (CBS, 7:30-8 p.m.). "Volcano: Birth of an Island" presents stunning scenes of lava erupting from beneath the sea to form the island Surtsey, off the coast of Iceland. Preview of a new series under the general title "Challenge."
NET PLAYHOUSE (NET, 8-9:30 p.m.). A man's obsessive dream and how it ultimately...