The crews on America's Best Dance Crew get a little bit disco, while Sarah's gay buddy Steve gets famous on The Sarah Silverman Program.Thursday, March 11 8:00 pm American Idol, Fox (1 hr) NEW It’s time to reveal the top 12! Unfortunately, four semifinalists must be eliminated to get there. Out comedian and talk show host Ellen DeGeneres continues to add a little comedic relief to the judging process. 9:00 pm Grey’s Anatomy, ABC (1 hr) NEW Richard and Owen both want to work on a challenging surgery, but it’s up to Derek to decide who’s best suited for the job. Meanwhile, Bailey looks forward to another date with Ben. Tune in to watch the cutest lesbian couple on primetime, CalZona. 9:00 pm The Office, NBC (30 min) NEW Michael has his heart set on impressing the head of Sabre (Kathy Bates), only to discover that someone has beat him to it. Will it be gay accountant Oscar? Meanwhile, Dwight tries to make Jim’s first day back from maternity leave as disastrous as possible, and tune in to see what happens on Andy and Erin’s first date! 10:00 pm Randy Jackson Presents: America’s Best Dance Crew, MTV (1 hr) NEW The seven remaining crews, including Static Noyze, which includes drag performer Peter Veth, incorporate disco into their street-influenced performances. 10:00 pm Project Runway, Lifetime (1 hr) NEW Watch as remaining gay designers Ben, Jay, and Jonathan face their next challenge! Will they make it work or be out like yesterday’s fashion? 10:30 pm The Sarah Silverman Program, Comedy Central (30 min) NEW Sarah reunites with an (imaginary) childhood friend, while Steve performs a song about not being allowed in his boyfriend Brian’s band, and becomes wildly popular.