Highlights The top 12 women compete tonight in a live, two-hour "American Idol"(Channel 5 at 8). On "Friday Night Lights"(Channel 4 at 8), with the Panthers deep into the playoffs, Julie picks a heckuva time to tell Matt that she's ready to have sex.
The "Medium"(Channel 4 at 10) envisions her daughter dying of leukemia in 20 years.
Jack engages in a power play with the Others on "Lost"(Channel 7 at 10), and Juliet's future hangs in the balance.
"Jericho"(Channel 9 at 8) returns to the CBS lineup after a hibernation. Tonight's episode flashes back to the day before the explosion, when Jake is trying to make an honest living in San Diego and Emily's fiance is heading to Chicago for a job interview that she's not happy about.
On "Criminal Minds"(Channel 9 at 9), a man with a military background seems the likely suspect in a series of random murders at Houston construction sites.
Here's a new one on "CSI: NY"(Channel 9 at 10): a dead man costumed as a giant cigarette.
"Beauty & the Geek"(Channel 50 at 8) holds a reunion of this season's participants in New York, where they revel in their geekiness and beautifulness.
John Grant's documentary "The Marines"(Channel 26 at 9) examines Marine Corps culture, including boot camp at Parris Island, S.C., and Marines training in mock Iraqi villages at Twentynine Palms in California.
"Sit Down Comedy With David Steinberg"(TV Land at 10) returns for a second season with Jerry Seinfeld talking about parenting, the greatest thing about being a comedian and his first "Tonight Show" appearance.
"Late Show With David Letterman"features "stupid human tricks," John Travolta and a performance from the Broadway musical "Spring Awakening."
Jaime Pressly, Gordon Ramsay and rock band Gomez appear on "The Tonight Show With Jay Leno"(Channel 4, 11:35).
-- John Maynard