Days after his bypass, Richard begins the slow road to recovery and the Gilmores attempt to return to normalcy. Rory goes back to Yale and finds that her grandfather's class is now being taught by a young, attractive professor who catches Rory off-guard with his charm. In Stars Hollow, Lorelai tries to forget about her marital problems by helping Sookie plan a funeral for one of Michel's beloved dogs. Later, Christopher returns home and confronts Lorelai about the main issue hurting their marriage -- Lorelai's feelings for Luke.

It's Valentine's Day, and Cuddy has a blind date. Meanwhile, House leaves ER duty to take the case of a child patient named Hannah.

When a dead body of a sailor is found in an abandoned part of the town, all the evidence seem to point that the person died from unintentional drug overdose, but when the team uncovers more evidence, it turns out to be a murder. Meanwhile, Tony bonds with a local detective while working on the case.

Contestants chosen from around the nation endure a grueling rehearsal schedule and pressure-packed auditions as they vie for a coveted spot among the Top 24. Who will survive and who will go home?

Scientists return to the jungles of Congo to further explore the peaceful lives of bonobos.

After Fulla T, a local rapper who was encouraging his fans to report crimes when they heard about them, is murdered outside a radio station, Logan and Wheeler find themselves reluctantly partnered up with Harry Williams, a detective from the gang unit. Wheeler is willing to give Williams the benefit of the doubt, but when their witness begin to turn up dead or missing not long after Williams learns they're looking for them, Logan begins to wonder just what side of the law Williams is really on.

No sooner has Wallace rejoined the Hearst basketball team, when the basketball coach, Tom Barry (guest star Matt McKenzie), is found dead. The coach's widow, Kathleen Barry (guest star Tracey Needham), hires Keith to investigate the murder of her husband and to clear her son, Josh (guest star Jonathan Chase), who is Sheriff Lamb's prime suspect. Logan is wallowing in self-pity after his breakup with Veronica, so Dick invites two girls over to cheer Logan up, but Logan gets stuck entertaining Heather (guest star Juliette Goglia), who is only 13 years old. Keith and Veronica discover that the alibis given by Mindy O'Dell (guest star Jamie Ray Newman) and Professor Landry (guest star Patrick Fabian) do not match.

Alan must once again defend Denny when he is arrested, this time for smuggling medical waste out of the country in order to create a new source of energy.
Meanwhile, Clarence finds himself in over his head when his first case turns out to be a first-degree murder charge, involving a Haitian slave who stabbed her owner.
In the wake of Denise's decision to keep Brad's baby, Jeffrey makes a bold decision.

Benson and Stabler attempt to question a confused young woman about an attack on her parents that left her brother traumatised and Stabler puts his career on the line when he goes too far.

The team goes to New York to protect a foreign dignitary at the United Nations building. A bomb is discovered and they must diffuse it.
Molly and Tiffy travel to Vietnam to attend a War Memorial Service. A mother of a POW asks them to look for her missing son.
On the home front, Mack rejects Crystal's advances and she threatens to tell Tiffy.

The fallout from the Jack Dawson story rattles DirtNow, but it rattles Leo a lot more. And fallout from the murdered-cheerleader story rattles Willa, but she finds an ally in Brent. Elsewhere, Lucy finds a rehab center for Julia; and Don takes up with another woman - and, he adds, "I'm 99 percent sure this one's real".

Tonight attorney and senior fellow at the Competitive Enterprise Institute and author of The Politically Incorrect Guide to Global Warming (and Environmentalism), Christopher Horner.
Jon first looks at the media's coverage of Anna Nicole's death fridge and a look inside CNN's own break room fridge. Jon then looks at Douglas Feith, the man who disseminated intelligence to the President about Iraq. Finally, Dan Bakkedahl looks at the polar bear clubs reaction to global warming.

Tonight Stephen welcomes Pulitzer Prize winning journalist Sheryl WuDunn.

Rukia helps Ichigo over comes, his depression, from not being able to help his friends and getting beat up by the Arrancars.

Simon Amstell hosts the pop quiz with guests Preston, Anne Charleston, Ed Byrne, Fyfe Dangerfield, and a special guest.