Wednesday, April 9
THE SECOND BILL COSBY SHOW (NBC, 9-10 p.m.).*Wearing a long white beard, Cosby becomes Noah—ark-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 destroys him is the subject of Playwright Robert (A Man for All Seasons) Bolt's Flowering Cherry.
Friday, April 11
EXPERIMENT IN TELEVISION (NBC, 10-11 p.m.). A subway passing ancient Roman ruins, a hippie wedding on an abandoned movie set, sinister characters at the Colosseum at night seem standard elements for a Federico Fellini movie. This time, though, it's "Fellini: A Director's Notebook," the maestro's first attempt at TV. Fellini not only directs but is the subject, aided by his actress-wife Giulietta Masina and Marcello Mastroianni.
Saturday, April 12
MAJOR LEAGUE BASEBALL (NBC, 3 p.m. to conclusion). The season's network telecasts start out with the San Francisco Giants v. the new San Diego Padres at San Diego.
WIDE WORLD OF SPORTS (ABC, 5-6:30 p.m.). The Atlanta 500 stock-car race from Atlanta International Raceway; World Surfing Championships from Rincon, Puerto Rico.
MASTERS GOLF TOURNAMENT (CBS, 5-6 p.m.). Third round of the classic competition at the Augusta (Ga.) National Golf Club. Final round Sunday (4-5:30 p.m.).
Sunday, April 13
NATIONAL HOCKEY LEAGUE (CBS, 1-4 p.m.). Stanley Cup playoff.
MAN AND HIS UNIVERSE (ABC, 4-5 p.m.). "The Scientist" focuses on Nobel Prizewinner James D. Watson and associates as they examine the repressor molecule that controls hereditary characteristics. Repeat.
EXPERIMENT IN TELEVISION (NBC, 4:30-5:30 p.m.). Contemporary Madame Butterfly is the theme for "Bye Bye Butterfly," a Japanese film followed through production stages with a special eye for changing (and contrasting) American and Japanese attitudes. Film Maker Pierre Gaisseau put it together in Tokyo.
DICK VAN DYKE AND THE OTHER WOMAN (CBS, 8-9 p.m.). TV Husband and Wife Dick Van Dyke and Mary Tyler Moore get together again—after three years' separation—to sing, dance and reminisce.
LIKE HEP! (NBC. 9-10 p.m.). Dinah Shore is back for a variety special with Guests Lucille Ball, Rowan and Martin, and Diana Ross without the Supremes.
Monday, April 14
33⅓REVOLUTIONS PER MONKEE (NBC, 8-9 p.m.). The Monkees host a salute to the evolution of music from a beginning in African rhythms to today's psychedelic musical freakout. Julie Driscoll and Brian Auger and the Trinity are joined by Golden Oldies Jerry Lee Lewis, Fats Domino and Little Richard among others.
NET JOURNAL (NET, 9-10 p.m.). "If I Don't Agree, Must I Go Away?" tells of a young Catholic woman's testing the "new morality," as she lives with a film maker in New York's East Village.