Due to entirely accidental alignments in tonight's network schedules, viewers can, by switching channels at the appropriate times, treat themselves to an instant mini-festival showcasing Carl Lumbly in different shows and roles. Three straight hours of him! If that doesn't precisely meet your definition of must-see television, then you've gotten my point.
* "Family Matters." (8-8:30 p.m., WJZ, Channel 13) -- Donna Summer guest stars as Urkel's Aunt Oona, who visits bearing gifts (which, in this case, might be called Oona mementos). ABC repeat.
* "M.A.N.T.I.S." (8-9 p.m., WBFF, Channel 45) -- Who's the man behind the mantis costume, the one who fights on the side of law and order -- or, in this case, the insecti-side of law and order? It's Lumbly, who can be seen later on CBS. Fox.
* "Eyes of a Witness." (9-11 p.m., WBAL, Channel 11) -- This 1991 telemovie features Lumbly and Daniel J. Travanti, in the kind of role he's been getting after "Hill Street Blues." David Caruso, take note. CBS repeat.
* "The X-Files." (9-10 p.m., WBFF, Channel 45) -- Agent Willis, the friend of Scully's who begins to act like a person possessed (and, on this show, that turns out to be an accurate diagnosis), is played by Allport, who really gets to act, as well as act strangely, here. Fox repeat.
* "Biography: Stan Laurel." (8-9 p.m., A&E) -- If you have a Hardy appetite for comedy, this show's for you. Stan Laurel, with and without his comedy partner Oliver Hardy, is profiled, and his work sampled, in this new biography.
* "Rebel Highway: Dragstrip Girl." (10-11:25 p.m., SHO) -- Natasha Gregson Wagner, the daughter of Natalie Wood and Robert Wagner, stars as the good girl gone semi-bad, or at least semi-rebellious, in this stylish new Showtime telemovie. Mark Dacascos stars as the drag racer and reluctant auto-parts thief who steals her heart -- having mistaken it for the cylinder pump of a '55 Chevy. Just kidding: The plot's closer to "West Side Story" without music, or "Romeo and Juliet" without balconies.