TiVo Guide Week of March 11, 2010 *spoiler alert*

"The Big Bang Theory" Wil Wheaton returns and once again battles with Sheldon, this time in a bowling match; and Penny and Leonard have a fight that threatens their relationship. Monday at 9:31 on CBS.

"United States of Tara" Tara decides to change therapists, and not a moment too soon as she's manifested a brand-new personality. Elsewhere, Max has a difficult time coping with Buck's affair; Tara and Max make their feelings known about Kate's relationship with Lynda; Marshall and Courtney's romance heats up; and Charmaine has some big news to share with the family. Monday at 10:30 on Showtime.

"Lost" Hurley agonizes over what to do next, and the Locke monster is curious about the new arrival to his camp. Meanwhile, Ilana leads a mission to Hydra Island. Libby: Cynthia Watros. Michael: Harold Perrineau. Carmen Reyes: Lillian Hurst. Tuesday at 9 on ABC.

"Justified" Raylan's father (Raymond J. Barry) is arrested following an altercation with a man who's renting a house he and Raylan's stepmother own, and Raylan must bail him out of jail. It turns out that the tenant has something to hide. Meanwhile, Raylan poses as a gardener to nab a fugitive hiding in a house. Tuesday at 10 on FX.

"American Idol" Two of the nine final singers are eliminated in a results episode. Season 8 contestant Adam Lambert performs "Whataya Want From Me." Wednesday at 9 on Fox.

"Ugly Betty" In the series finale, Betty is anxious about telling Daniel her future plans; Justin and Bobby try to convince Hilda that they should move to Manhattan; Amanda mourns the loss of a loved one; and Marc is discouraged by his romantic prospects. Wednesday at 10:01 on ABC.

"Supernatural" Sam and Dean are horrified when they learn of the angels' new plans, and the brothers take on Zachariah to prevent a war on Earth. Thursday at 9 on The CW.

"Saturday Night Live in the 2000s: Time and Again" A retrospective that highlights the highs and woes of the late-night show in the 2000s. Featured: clips, backstage anecdotes and interviews with a slew of "SNL" performers, including Jimmy Fallon, Will Ferrell, Tina Fey, Bill Hader, Chris Kattan, Seth Meyers, Tracy Morgan, Amy Poehler, Andy Samberg and Kristen Wiig. Also: insight from memorable hosts, such as Alec Baldwin and Christopher Walken. Thursday at 9 on NBC.

"Secrets of the Mountain" A single mom (Paige Turco) decides to sell a cabin she inherited years ago from her uncle (Barry Bostwick) and takes her kids on a weekend trip to finalize the deal. But the journey ends up taking a dangerous turn when the family uncover a mystery that someone doesn't want them to solve. Friday at 9 on NBC.

"Doctor Who" The 11th Doctor (Matt Smith) must save the world in 20 minutes even though the TARDIS is wrecked and his disabled sonic screwdriver is disabled. Fortunately, he also meets Amy Pond (Karen Gillan) in the fifth-season premiere. Saturday at 9 on BBC America.

"Bound by a Secret" Dying actress Jane (Leslie Ann Warren) returns to her hometown to spend her final days with her best friend, Ida Mae (Meredith Baxter). Their respite hits a snag, though, when Jane decides to reveal that she's the biological mother of Ida Mae's daughter (Bridget Ann White). Timothy Bottoms also stars. Directed by David S. Cass Sr. Saturday at 9 on Hallmark.

"Academy of Country Music Awards" Reba McEntire hosts the 45th annual gala in Las Vegas. Performers include: Lady Antebellum; Carrie Underwood; Kenny Chesney; Tim McGraw; Brooks and Dunn; Jason Aldean; Blake Shelton; and Trace Adkins. Lady Antebellum lead in nominations with seven. Miranda Lambert and Carrie Underwood follow with six nods each. Sunday at 8 on CBS.

"The Pacific" Still fighting on Peleliu in September 1944, in extreme heat and with little drinking water, Leckie, Sledge and the rest of the 1st Marines attempt a dangerous assault across the airfield under constant fire from entrenched enemy positions. Meanwhile, Sid Phillips pays a visit to Sledge's parents back in Mobile, Ala., and does his best to assure them their son will be all right. Sunday at 9 on HBO.