Today on TV

Ghost Whisperer (7 p.m., Ch. 2): Melinda helps a dead teen make things right with her twin sister.

Three Wishes (7 p.m., Ch. 5): In a two-hour episode, wishes are granted in Brookings, S.D.

Bernie Mac (7 p.m., Ch. 13): Vanessa goes waaaaay overboard on a pair of shoes.

Malcolm in the Middle (7:30 p.m., Ch. 13): Hal panics when the family's health insurance lapses.

Threshold (8 p.m., Ch. 2): The team searches for one of the missing Big Horn crew members.

Reba (8 p.m., Ch. 30): Reba is worried when Van stops going to church.

Numb3rs (9 p.m., Ch. 2): A photographer is murdered by a stalker.

Law & Order: Special Victims Unit (9 p.m., Ch. 5): NBC is plugging last week's episode of "SVU" in here in place of "Inconceivable," which is getting a break after only two weeks on the air. We're told "Inconceivable" will return next week, but after averaging only 5.4 million viewers — 40 percent fewer than the canceled "Medical Investigation" got in this time slot last fall — don't hold your breath. On the other hand, if NBC canceled every one of its shows that's doing poorly in the ratings it wouldn't have enough programming to fill out its schedule.

Alchemy (9 p.m., ABC Family): Cute TV movie about a college professor (Tom Cavanagh of "Ed") who creates a computer program that can think and express emotions — so the professor experiments to see if a woman (Sarah Chalke of "Scrubs") can fall in love with the program. But the professor falls in love with the woman. . . .