On The Weekend Watch:
THE END IS NIGH -- As the ratings sweeps month grinds on, numerous series are offering their season finales, including tonight's NBC comedy lineup (Channel 2) of "Cosby," "A Different World" and "Cheers." Eagerly awaited by some is the last-ever "Dallas" (at 9 p.m. Friday, Channel 11). A wedding is in the offing on Media Monitor's favorite slapstick comedy, "Perfect Strangers" (at 9:30 p.m. Friday, Channel 13). Larry (Mark Linn-Baker) is betrothed to Jennifer (Melanie Wilson), but Balki (Bronson Pinchot) has some alien rites to perform first. And on ABC's "Life Goes On" on Sunday (7 p.m., Channel 13), a baby is on the way for Libby (Patti Lupone).
THE CABLE CONNECTION -- To some, this may seem like a perverse highway stop to view the carnage of an automobile accident, but Vice President Dan Quayle sits still for a one-hour interview on CNN tonight. Quayle is the guest on "Larry King Live," at 9 p.m., which includes two-way talk from viewers. Also on cable's Disney Channel this weekend, "The Little Mermaid" makes its debut at 7 p.m. Sunday.
SATURDAY NIGHT POTATOES -- The irony of an unusual ABC special Saturday is that if you are sitting home watching it, you are definitely not part of the in crowd it covers. The show is "An American Saturday Night" (at 10, Channel 13), a variety/documentary blend hosted by comic Richard Lewis which looks at the way we celebrate the weekend's hottest night. A visit to a Hollywood party and coverage of a Billy Joel concert in Mexico City are among the segments.
THE MOVIE MARQUEE -- The musical "Ziegfeld" recently left the Mechanic Theatre, and now Maryland Public Television is offering a showing of "The Great Ziegfeld," the Oscar-winning 1936 film in which William Powell played the Broadway baby. This is the latest entry in MPT's nice Friday night movie classics schedule, at 11 p.m. (channels 22 and 67).
COPS ON THE BEAT -- Could an incident of police violence such as occurred on videotape in Los Angeles happen here? That is the topic of an hour-long edition Sunday of "1st Sunday With Kwesei Mfume" (at 11:30 p.m., Channel 11). The Maryland Congressman investigates the topic in front of a studio audience with guest Dick Gregory.
THE SPORTS SCENE -- Everywhere else it's perhaps the prime horse race of the year, but in Baltimore the Kentucky Derby is really just the last Preakness prep. In any case, it's this Saturday at Churchill Downs in Kentucky, and ABC's live coverage begins at 4:30 p.m. (Channel 13), with the usual announcing crew of Jim McKay, Al Michaels, Charlsie Cantey, Dave Johnson and Jack Whitaker. The race should shed some light on the field for the Preakness Stakes, scheduled May 18 at Pimlico.