Are aliens visiting Earth and having their way with us? Watch "Nova" and decide for yourself.
* " 'The Wizard of Oz' on Ice" (8 p.m.-9 p.m., WJZ, Channel 13) -- Oksana Baiul as Dorothy and Viktor Petrenko as the Scarecrow highlight this frozen version of the classic children's book and beloved MGM film. With ice skating already showing up just about everywhere on television, can a 24-hour-a-day, all-skating cable channel be far behind? CBS.
* "Nova" (8 p.m.-9 p.m., MPT, Channels 22 and 67) -- This analytic, but still creepy, look at people who insist they've been abducted and, in some cases, sexually assaulted by aliens should get you thinking. In fact, you may end up a believer . . . until the show points out that one of the first reported alien abductions occurred in the mid-1960s, just days after an episode of "The Outer Limits" depicted an alien with telepathic abilities. The couple's alleged abductor, it turns out, looked an awful lot like that alien.
* "Roseanne" (8 p.m.-8:30 p.m., WMAR, Channel 2) -- The Conners visit Disney World, where Darlene (Sara Gilbert) develops a thing for Winnie the Pooh. ABC.
* "3rd Rock From the Sun" (8:30 p.m.-9 p.m., WBAL, Channel 11) -- Dick (John Lithgow) is asked to eulogize a particularly obnoxious professor who has died. While alive, the professor is played by John Mahoney, whose 9-to-5 job is portraying the father on "Frasier." Mr. Lithgow continues to bring more talent to this show than it deserves. NBC.
* "Showtime at the Apollo" (10 p.m.-11 p.m., WNUV, Channel 54) -- The series celebrates its 200th show with music from Diana Ross, Mariah Carey and Boyz II Men.
* "Jesse Owens Returns to Berlin" (9 p.m.-10 p.m., Disney) -- Was there ever a better example of sweet justice than a black man, Jesse Owens, going to Nazi Germany in 1936 and winning a bunch of gold medals right in front of Adolf Hitler, who was already busy spreading his "Aryans-shall-rule-the-world" credo? This program documents Owens' return trip to Berlin in 1964.