Today on TV

Smallville (7 p.m., Ch. 30): Holy Kryptonite, it's a new episode for the first time in six weeks. Tonight, Lex is cloned.

Stacked (7:30 p.m., Ch. 13): This is one of those shows that wasn't previewed for critics, and we all know what that means — Fox didn't want us to see this Pamela Anderson sitcom. There's always an excuse for not sending tapes to critics (this time it's that there was a last-minute recasting, with Elon Gold replacing Tom Everett Scott as Anderson's boss at the bookstore where she lands a job), but in the past 15 years no show that was ever withheld from critics has turned out to be anything other than bad. And even if that weren't true, you'd have to question a show that is being rushed on the air as quickly as this one.

King of Queens (8 p.m., Ch. 2): Doug, Carrie and Arthur are stranded in a blizzard.

Alias (8 p.m., Ch. 4): Isabella Rossellini returns as Sydney's evil aunt.

American Idol (8 p.m., Ch. 13): One of the eight finalists is eliminated in an expanded, one-hour results show. (Yaaaaawn.) And "Life On a Stick" won't air this week.

Kevin Hill (8 p.m., Ch. 24): Kevin defends a boxer charged in a bar fight.

Jack & Bobby (8 p.m., Ch. 30): You're kidding — a new episode of this show, too? Amazing. Tonight, Bobby is recruited to the track team.

CSI: NY (9 p.m., Ch. 2): Danny disregards Mac's orders.

Eyes (9 p.m., Ch. 4): Harlan's ex-wife stirs things up.

Law & Order (9 p.m., Ch. 5): Green is shot in the first half of a two-part crossover episode that concludes Friday on "Trial by Jury."