How I Met Your Mother (8pm, CBS) -  Unable to decide which of their friends would make the best godparents, Lily and Marshall put them all to a test.

Gossip Girl (9pm, CW) - Serena hosts a gala for a conservancy, while Blair encounters a past enemy as she gets ready to debut her fashion line.

Major Crimes (9pm, TNT) - Major Crimes teams with the FBI to apprehend a lethal sniper, and Raydor negotiates a deal that even Provenza can support.

Revolution (10pm, NBC) - The gang close in on Neville's group, but a discovery threatens to impede their efforts to rescue Danny. Also, Monroe (David Lyons, left) ups the value of Danny's life and Nora makes a connection with another rebel.

Castle (10pm, ABC) - Castle and Beckett head to the Hamptons for a romantic getaway, but their plans go awry when a man dies in Castle's pool and they assist the small-town police with the homicide investigation.

Hawaii Five-0 (10pm, CBS) - The death of a polo player who literally loses his head is investigated. Meanwhile, McGarrett's mother pays him an unexpected visit.

Intervention (10pm, A&E) - The story of a 25-year-old man with alcohol addiction who is expecting his first child. 

Countdown with Keith Obermann (8pm, Current TV) - The premiere of Olbermann's new show after being fired from MSNBC. Current TV is channel 413 on Time Warner Cable.

The Bachelorette (8pm, ABC) - Ashley is still in the Thailand with the remaining guys, trying to figure out which one can be her mate for life. Also, Evil Bentley returns to mess with Ashley's head some more. Because, you know, free trip to Thailand.

Animal Planet Investigates: Captive Hunting Exposed (9pm, Animal Planet) - An investigation into canned-hunting operations, in which animals are shot in confined areas. According to Zap2It.com, the special takes viewers inside facilities in New York and Texas where clients hunt and kill exotic and sometimes endangered species. Zebras, wildebeests, even kangaroos are all fair game and confined to a limited area where they are easy pickings for the trophy-hungry hunter. Seriously, in what kind of tortured rationalization is that "sporting?"

Sex Crimes Unit (9pm, HBO) - A documentary that looks at the division of the Manhattan DA's office dedicated to investigating and prosecuting sexual assault cases. Includes the story of a 1993 rape that was reexamined shortly before the statute of limitations expired, but ended with a conviction. Directed by Lisa F. Jackson.

MasterChef (9pm, Fox) - The contestants have one hour to prepare a dish using surprise ingredients found in a mystery box. Two are eliminated. My vow to Fox: I'll keep watching as long as you keep Pumpkin Ben. After that, I can't make any promises.

Hoarders (9pm, A&E) - In the fourth season opener, a woman collects dolls, and a woman has no water or heat in her home because of her hoarding. Geralin Thomas, a professional organizer in Cary, appears on tonight's episode helping Phyllis from Georgia.

Intervention (10pm, A&E) - A new season opens with a woman battling a heroin addiction.

Teen Wolf (10pm, MTV) - A new werewolf hunter arrives in town, putting Derek's life in danger and forcing him to make reluctant allies of Scott and Stiles. Meanwhile, Scott tries to survive dinner with Allison's father.

Nurse Jackie (10pm, Showtime) - In the season finale, Jackie sweats through a mandatory drug test at work and tries to avoid another confrontation with Kevin.

United States of Tara (10:30pm, Showtime) - In the series finale,  Tara and Max head to Boston to see an expert doctor. Also, Evan proposes to Kate and Marshall ponders where to go to college.

Drug addiction is a tenacious disease and so, a stint in rehab often isn't enough. Rehab might give an addict the tools to stay clean, but once out and on their own, it's tough to stay the course.

That's where a good support system comes into play and for those who go back to bad habits, a crucial part of that team is a sober coach; they're the focus of "Relapse" (A&E, 9 tonight), a powerful show from the makers of "Intervention."

"Intervention" has made an impact by showing the horrors of addiction, the toll it takes on the user and the user's family. "Relapse" continues that raw quality but gives a glimpse into the work of those who fearlessly give one-on-one help to the addicted.

House (8pm, Fox) - Wilson (Robert Sean Leonard, left) works on a case involving an old friend (Joshua Malina) and makes a bet with House that his diagnosis is not the return of cancer.

How the Grinch Stole Christmas (8pm, ABC) - The original Dr. Seuss animated classic with narration by Boris Karloff.

Lie to Me (9pm, Fox) - Cal, Foster, and Reynolds determine the honesty of poker players during  the investigation into a missing finalist in the World Series of Poker in Las Vegas.

Intervention (9pm, A&E) - A&E's Emmy-winning reality series returns, and the subject of tonight's addiction is pain killers. 

Hoarders (10pm, A&E) -  The season two premiere focuses on a son trying to help his mother, a hoarder whose compulsive behavior led to him being removed from her home 14 years earlier. 

Chef Academy (11pm, Bravo) - The students (including one from Charlotte) must replicate Chef Novelli's risotto with his mother's tomato sauce, but not before a disruption results in one student's dismissal. If you need to catch up, read last week's recap.

The Bachelorette: The Men Tell All (8pm, ABC) - This is a two-hour show, which means there will be about 20 minutes of actual interesting content. We only want to hear from the foot perv Tanner and the jerkface Wes. Mostly, they should be talking to Wes, who will have a million reasons why he's misunderstood. The rest will be filler, and I can promise you it will not end before they trot out Trista and Ryan and their babies. DVR it and fast-forward like crazy.

Intervention (9pm, A&E) - This gut-wrenching show looks at people struggling with and ultimately facing up to various forms of addiction, with the help and support of family and friends. Tonight they focus on crystal meth and alcohol. 

Dating in the Dark (10pm, ABC) - ABC is trying to dress this up and show it off as some sort of social science experiment about how we're all shallow and we want to date attractive people. But what it looks like is a show where strangers get felt up in the dark and then freak out when they see that the person they were just getting cozy with is not so cute.

Kathy Griffin: My Life on the D-List (10pm, Bravo) - Kathy tries to expand her fan base by performing at The Apollo Theater in Harlem. Not sure that's her audience, but we'll go along. Rapper T.I. and Rev. Al Sharpton appear. 

Weeds (10pm, Showtime) - Nancy's delivery date draws near and she learns more about Esteban's other woman and his plans for her after the baby is born. Alanis Morrisette stars as Nancy's obstetrician, who helps her take control of her situation. (Note to self: Do not ever get pregnant with a Mexican drug lord's baby, no matter how cute he is).