Chuck (8pm, NBC) - Two new episodes tonight close out a great show that a lot of people (but not enough!) will miss. First, Sarah (Yvonne Strahovski, left) keeps a secret from Chuck (Zachary Levi, left) in order to successfully pull off a perilous mission, and Ellie and Awesome are presented with a new and potentially life-changing opportunity. Then Chuck embarks on his final mission in the series finale at 9. He must revisit his past in order to save his future, and teams up with friends, family, and unlikely allies to vanquish the sinister villain Nicholas Quinn.
Shark Tank (8pm, ABC) - Ideas a cat-portrait business (yes!) and there's a follow-up on a potty-training product for cats (no!) from Season 2.
Fringe (9pm, Fox) - Olivia is preoccupied by a warning from the Observers, while Peter helps with the search for a girl with mysterious powers to see the future.
On Freddie Roach (9:30pm, HBO) - The second episode in this documentary series following boxing trainer Freddie Roach focuses on a routine day at Roach's Wild Crd Gym as it's suddenly thrown into chaos.
Confessions: Animal Hoarding (10pm, Animal Planet) - Tonight's episode features a dog hoarder from Garland, North Carolina, who gets help from the Wake County SPCA. The Vietnam veteran and former minister had 35 dogs chained up around his home, living in some pretty horrible conditions. Read more about the episode and the Wake SPCA's involvement. Also in this episode, a woman (not from North Carolina) who has more than 100 cats, which have made her current home uninhabitable. Another North Carolina episode airs on February 10.
Portlandia (10pm, IFC) - Michelle and Brendan pull out all the stops to see that their son gains admittance to a prestigious preschool.

Shark Tank (8pm, ABC) - Mark Cuban, owner of the 2011 NBA champions Dallas Mavericks, returns as a judge for Season 3 of this highly addictive show in which inventors and entrepreneurs pitch ideas to wealthy business people. Cuban, left, did some guest judge spots last season and he's pretty cutthroat. One of the pitches tonight comes from NBA Hall of Famer Bill Walton and triathlete Dave Meyer, who have designed a new type of water bottle. There's also an update on the customized speakers venture from Season 2.
Extreme Makeover: Home Edition (8pm, ABC) - For the show's series finale, two hours are devoted to showing the rebuilding of seven homes in Joplin, Missouri, where families suffered great losses during an October 2011 tornado. The Makoever gang also refurbished a local park, created a new playground, and built a memorial site to volunteers who came to the aid of others after the storm.
scrutinize some of the crazy happenings at the Buy More.
The Chronicles of Narnia: The Lion, the Witch and the Wardrobe (8pm, ABC) - The 2005 version of C.S. Lewis' novels about four British children who enter a magical world where they befriend creatures and battle a witch.
Shrek the Halls (8pm, ABC) - Shrek, Fiona and the kids try to celebrate the holidays as a family, but visits by Donkey, Puss in Boots, and the Gingerbread Man make their cozy gathering chaotic. Voices of Mike Myers, Cameron Diaz, Eddie Murphy, and Antonio Banderas. "Phineas and Ferb Christmas Vacation" airs after this at 8:30, "Prep & Landing 2: Naughty vs. Nice" airs at 9, and "Kung Fu Panda Holiday Special" is on at 9:30.
Chuck (8pm, NBC) - Chuck and Sarah race against time to take down a dangerous computer virus, pitting them against Robyn Cunnings (Rebecca Romijn, right), a ruthless spy who will stop at nothing to get what she needs. Meanwhile, Ellie and Awesome’s date night takes a dangerous turn and Morgan is sent on a special mission to recover Chuck’s P.A.N.T.S. Adam Baldwin also stars.
Frosty the Snowman (8pm, CBS) - Jimmy Durante narrates this animated tale of a warmhearted snowman who comes to life and must then make his way to the North Pole before temperatures warm the rest of him. "Frosty Returns" airs just after this, followed by "Yes, Virginia, There is a Santa Claus," and "Elf on a Shelf: An Elf's Story."
Grimm (9pm, NBC) - Nick and Hank investigate a breaking-and-entering case that leads them to a mysterious family with a cultural heritage of blurring the line between right and wrong. Nick also asks his blutbad buddy Monroe to help safeguard Aunt Marie.
Chuck (8pm, NBC) - The fifth and final season opens with Chuck (Zachary Levi, left) adapting to changes, such as dealing with an unlikely new Intersect and fronting his freshly minted spy-for-hire business. Carmichael Industries takes on a wealthy thief (Mark Hamill) and a sly investor (Craig Kilborn). Meanwhile, Morgan and Chuck team up to give Sarah a special surprise, and Jeff and Lester launch yet another scheme.
