03/13/2000 at 01:00 AM EST
>Sunday, March 12 SCREEN ACTORS GUILD AWARDS TNT (8 p.m. ET) Jim Carrey is nominated in this event, and Sidney Poitier takes the prize for lifetime achievement.
Monday, March 13 ONCE AND AGAIN ABC (10 p.m. ET) Patrick Dempsey
guest-stars as Lily's schizophrenic brother.
Tuesday, March 14 3RD ROCK FROM THE SUN NBC (8 p.m. ET) Chyna, of wrestling fame, appears as a pumped-up policewoman who turns Harry's head.
Wednesday, March 15 VEGAS VACATION CBS (9 p.m. ET) Chevy Chase and family gamble on another getaway in a 1997 comedy.
Thursday, March 16 FRASIER NBC (9 p.m. ET) What a lot of borscht. Frasier and Niles think they're Russian royalty.
Friday, March 17 HELL SWARM UPN (8 p.m. ET) An advanced race that ruled Earth long ago returns to wreak a little havoc in this TV movie.
Saturday, March 18 PUSHING TIN HBO (8 p.m. ET) Fasten seat belts, viewers. John Cusack and Billy Bob Thornton jockey for position in a 1999 flick about air-traffic controllers.