On The Weekend Watch:
PREMIERES, PREMIERES -- The spring replacement season gets an early start, mostly on CBS. First up Friday (8 p.m., Channel 11) is "Scorch," followed at 8:30 by "Fish Police." If you missed promos for these shows during the Olympics, the former is about a fire-breathing dragon who comes to live with a sitcom family, and the latter is a Hanna-Barbera cartoon production in which recognizable stars give voice to a cast of fishy characters. Also Friday on NBC comes "Nightmare Cafe" (at 10 p.m., Channel 2), an hour-long repertory drama from director Wes Craven of "Nightmare on Elm Street" fame. And actor Robert Englund (Freddy Kreuger from the "Nightmare" movies) is in the cast. Finally, on CBS Saturday (10 p.m. Channel 11), "The Boys of Twilight" stars Wilford Brimley and Richard Farnsworth as a Western sheriff and his deputy.
CAMEOS, CAMEOS -- Tonight brings a couple of cute cameos to a pair of regular series, one oral and the other visual. Yes, that is the voice of TV veteran Steve Allen as a vocational counselor on "The Simpsons" (8 p.m., Channel 45). He suggests that Bart has the aptitude to be -- gasp! -- a policeman. And yes, that really is Iran-contra figure Oliver North as a passenger in Brian's (Steve Weber) plane on "Wings" (9:30 p.m., Channel 2).
OLDIES, OLDIES -- A couple of cable services bring back some blasts from the past this weekend. First, beginning at 8 p.m. Saturday, Nick At Nite launches ""The Dick Van Dyke Collection," a marathon screening of each of the 158 episodes of TV's funniest sitcom, which ran from 1961 to 1965. It pre-empts a total of 80 hours of the regular rerun schedule over eight nights. Also Saturday on TNT (beginning at 8 p.m.), four episodes of the 1963-65 science fiction series "The Outer Limits" materialize back-to-back.
AN ORIGINAL WORK -- Maryland Penitentiary inmate H.B. Johnson, Jr. won this year's 10th Annual Drama Competition for black playwrights sponsored by WMAR-Channel 2. And his "A Gift From the Hunters" can be seen at 7 p.m. Saturday. The annual Black History Month production was mounted by the station and The Arena Players.
PLAYING POLITICS -- The University of Maryland and the Democratic National Committee are co-producing a "1992 Democratic Presidential Candidates Forum" at 6 p.m. Sunday over Maryland Public Television. The state's presidential primary is on Tuesday.