With four nights to go, Olympics coverage dominates the dial. But while viewers have been gazing at Vancouver, the Thursday-night schedule has undergone some renovations. As announced last week, the first season of “The Deep End” (7 p.m., ABC) concludes tonight with a big to-do about a charity function. Unless I’m very wrong, this will be the first and last season. Look for a repeat of “Grey’s Anatomy” in this slot next week. “Fast Forward” returns later in March.

As predicted earlier, and obvious to all, Fox finally pulled the plug on “Past Life” and will air an extra helping of “Kitchen Nightmares” (8 p.m., Fox) in its place. Tonight, chef Gordon Ramsay tries to breathe life into a change-resistant Italian restaurant in California.

The fire-breathing and award-winning chef is all over the dial tonight. Viewers can catch two helpings of the original British version of “Kitchen Nightmares” (7 p.m. and 8 p.m.) on BBC America. And look for Ramsay on “Jimmy Kimmel Live” (10:30 p.m., ABC), too.

Of greater import for Fox, “American Idol” (7 p.m., Fox) will barge into the Thursday-night schedule to announce eliminations and survivors. Do they really need a whole hour? Of course not, but this allows Fox to broadcast its ratings champ, a show rival networks call “The Death Star,” on a third night.

The Thursday-night tweaking continues next week, when NBC moves its highly promoted series “The Marriage Ref” into the ill-fated Jay Leno slot.

Tonight’s other highlights

• Japanese director Akira Kurosawa sets the story of Shakespeare’s King Lear in the samurai era in his 1985 epic “Ran” (4:45 p.m., Sundance).

• Women’s hockey (5 p.m., MSNBC).

• Women’s figure skating takes center stage in Winter Olympics coverage (7 p.m., NBC).

• Emma Roberts lends her face to the spunky sleuth “Nancy Drew” (7 p.m., Family) in the 2007 adaptation.

• Long awaited, and clearly watched by fans, the 2007 comedy “The Simpsons Movie” (7 p.m., FX) proved that the show’s humor worked best in 22-minute helpings.

• A pop star (Sterling Knight) worries that his girlfriend (Danielle Campbell) may hamper his career in the 2010 musical comedy “StarStruck” (7 p.m., Disney), a ratings hit for the Mouse Network.

• A white-collar crime turns bloody on “The Mentalist” (8 p.m., CBS).

• An execution-style killing roils an ethnic enclave on “CSI” (9 p.m., CBS).

• Pint-sized models prove challenging on “Project Runway” (9 p.m., Lifetime).

• Fiona has her hands full on “Burn Notice” (9 p.m., USA).