A series that had developed a cult following before being canceled returns from the dead tonight -- an event not every cult can claim about the object of its devotion. Also tonight, "Dateline NBC" begins its coverage of the World Series that wasn't, while Biography on A&E; tackles a monster subject: Frankenstein.
* "Alien Nation: Dark Horizon" (8-10 p.m., Channel 45) -- Two of the writer-producers of "Northern Exposure," Diane Frolov and Andrew Schneider, take a career step backward, so to speak, by writing a new installment of the previous series on which they worked. When "Alien Nation" was canceled by Fox in 1991, it ended with a cliffhanger plot about alien bad guys coming to Earth to reclaim the slaves that had crashed here and been integrated into everyday life. This two-hour telemovie picks up and resolves that plot. Fox.
* "Frasier" (8:30-9:30 p.m., Channel 2) -- Both of the episodes shown tonight are repeats, but both repeats are worthy of a second viewing. In the first, Frasier (Kelsey Grammer) fawns over a postmodern artist (Rachel Rosenthal) who doesn't return the affection; in the second, he gets into trouble after disposing of his father's premodern recliner. John Mahoney co-stars. NBC.
* "Fatal Vows: The Alexandra O'Hara Story" (9-11 p.m., Channel 11) -- John Stamos goes for another dark role, and plays it effectively, in this fact-based story about a sociopath who marries an initially adoring divorcee -- played by Cynthia Gibb of "Madman of the People," who, like Mr. Stamos, is eager to stretch some acting muscles. CBS.
* "Dateline NBC" (10-11 p.m., Channel 2) -- This week "Dateline" gets a Triple A for effort. By using Triple A team members and officials, it re-creates computerized projections of the 1994 World Series, giving us October baseball after all. NBC.
* "NYPD Blue" (10-11 p.m., Channel 13) -- A new detective joins the force tonight -- but said cop is played by Justine Miceli, not by Jimmy Smits. He arrives in a few weeks. ABC.
* "Frontline: Is This Any Way to Run a Government?" (10-11 p.m., Channel 22) -- In a word, no. This "Frontline" slams the U.S. Department of Agriculture as unwieldy and unworkable, and clocks more ambush interviews than usual in the process. PBS.
* "Biography: 'Frankenstein: The True Story' " (8-9 p.m., A&E;) -- Wherein we learn all about the creature comforts of Mary Shelley's famous creation.