iCarly

iCarly
8/7c Nickelodeon
In a stroke of great casting, Jane Lynch guest stars as boorish Sam's even more boorish mother, whom Sam has described in the past as having questionable hygiene, bad driving skills and poor taste in men. Tonight, a huge fight between Sam and her mom results in Sam bunking at Carly's place, but Sam's rude behavior as a houseguest has Carly and Spencer ready to evict her. Carly soon realizes that the only way to remedy her situation is to get Sam and her mom to resolve their issues. — Jennifer Sankowski

Being Human
9/8c BBC America
This season's penultimate episode finds the trio of otherworldly roommates dealing with all sorts of personal problems. After surviving the explosion that killed most of his coven, Mitchell vows to track down the person responsible, and things take a turn for the worst when he learns of Lucy's involvement. Meanwhile, George's ex, Nina, returns and offers him a chance at a werewolf cure, forcing him to make a very difficult decision. And Annie decides that it's finally her time to cross over, but doing so is easier said than done. — Karen Andzejewski

U.S. Open Tennis
8/7c CBS
Already in its 10th year under the lights, the Saturday-night women's singles final creates a dynamic setting at celebrity-filled Arthur Ashe Stadium. The atmosphere is unmatched by the other Grand Slams, which this year produced a string of success by older players that has continued at the Open. Not since Maria Sharapova and Svetlana Kuznetsova in 2004 has a teenager won a major, and one of tonight's finalists comes from the veteran group of 30-year-old Venus Williams; French Open finalists Francesca Schiavone (30) and Samantha Stosur (26); and 2009 champ Kim Clijsters (27). Meanwhile, injured 28-year-old Wimbledon and Aussie Open winner Serena Williams watches from the sidelines. — Roger Leister

Fairfield Road
9/8c Hallmark
Desperate Housewives hunk Jesse Metcalfe takes on a decidedly different role tonight as a young aspiring politician. After landing and then quickly losing his dream job, as well as his girlfriend, Metcalfe's Noah McManus takes a trip to Cape Cod for what he assumes will be a quick errand. But once there, Noah can't help but find himself drawn in to a heated local election. — Brie Hearn

NASCAR Racing
7:30/6:30c ABC
The winner of tonight's Sprint Cup Air Guard 400 will ride into victory lane at cozy Richmond International Speedway and perform the customary celebration and salute to his sponsors. Just as compelling is the race within the race, as the foursome of Ryan Newman, Daytona 500 champ Jamie McMurray, 51-year-old Mark Martin and longshot David Reutimann try to supplant Greg Biffle (11th place) or Clint Bowyer (12th) in the Sprint Cup standings, therefore qualifying for the 10-race playoff Chase. Biffle needs to finish ahead of only one car, however, while Bowyer's target is 28th place or better on one of his favorite tracks. Jimmie Johnson is the only driver to make the Chase in every one of its seven years. — Roger Leister

America's Most Wanted
9/8c Fox
Not that anyone needs reminders, but today is the ninth anniversary of the attacks of Sept. 11, 2001. John Walsh won't let you forget: He's at Ground Zero as Season 24 starts. There, he will review that horrible day and update the hunt for surviving perpetrators. Walsh will also replay footage from his Sept. 13, 2001 visit. And he's spotlighting Adnan El Shukrijumah, a onetime Brooklyn and Florida resident who is, the FBI believes, al Qaeda's chief of global operations. El Shukrijumah has also been implicated in a New York City-subway bomb plot. — Paul Droesch

Sherlock Holmes
10/9c Cinemax
Forget the cerebral, staid Basil Rathbone-ish incarnation of Sir Arthur Conan Doyle's legendary detective, and revel in this 2009 action-packed, sort-of superhero reimagining by Robert Downey Jr. Downey's interpretation is full of swashbuckling flair and derring-do, with more crime-solving going on in the streets and alleyways than the drawing room. The game's afoot as Holmes teams with Watson (Jude Law) to battle Lord Blackwood (Mark Strong), a deadly new adversary who's intent on destroying England. Rated PG-13 for sexual situations and violence. — Ray Stackhouse