The Sci Fi Channel's reshuffled weekday lineup starts today with an earlier classic Star Trek episode and a rare TV showing of the pioneering Nicholas Roeg film "The Man Who Fell to Earth."

(all times Eastern)

3:00 AM The Man Who Fell to Earth (SciFi)

Edgy but somewhat overwrought classic of the SF New Wave features David Bowie as the title character, a sort of alien Kaspar Hauser armed with high technology but not enough business sense.

9:15 AM The Outer Limits (Showtime Beyond) - Summit

Genre favorite Michael Ironside guest-stars in this tale of diplomatic negotiations between Earth and planet Dregocia.

2:00 PM Powers of Matthew Star (TVLand) - Road Rebels

Matthew and Walt (Louis Gossett Jr.) go undercover to stop drag racers from smuggling.

5:00 PM Star Trek (SciFi) - The Man Trap

The original Trek cycle begins again with this rerun of the first regular-broadcast episode. After meeting an ex-girlfriend, McCoy wrestles with feelings of regret, along with a salt vampire.

5:45 PM The Invader (MoreMax)

Mars needs women: An alien decides to impregnate a schoolteacher (Sean Young) in order to provide his dying race with females, all of whom have been wiped out by a rival species.

9:00 PM The X-Files (FX) - Tunguska

The weasel-like Krycek returns, this time leading Scully and Mulder into a Russian trap involving the "black worm" form of the sinister oily aliens. Meanwhile, Marita, a/k/a The Uniblonde, offers little help. (first part of two)