HDTV Listings for March 31, 2011

What we're watching tonight:

• NBC (1080i) has Perfect Couples at 8:30 p.m.
• ABC (720p) has Wipeout at 8 p.m., Grey's Anatomy at 9 p.m. and Private Practice at 10 p.m.
• CBS (1080i) has The Big Bang Theory at 8 p.m., Rules of Engagement at 8:30 p.m., CSI at 9 p.m. and The Mentalist at 10 p.m.
• Showtime (1080i) presents Behind the Burly Q at 8 p.m.
• Fox (720p) has American Idol at 8 p.m. and presents Mobbed at 9 p.m.
• History (720p) has the season premiere of Swamp People at 9 p.m.
• FX (720p) has Archer at 10 p.m.
• Spike (1080i) has TNA: Impact at 9 p.m.
• Discovery (1080i) presents Taxidermy USA at 10 p.m.
• ESPN (720p) has Giants/Dodgers baseball at 8 p.m.
• ESPN2 (720p) has the NIT Championship Game with Wichita State/Alabama at 7 p.m.
• TNT (1080i) has an NBA doubleheader with Celtics/Spurs at 8 p.m. and Mavericks/Lakers at 10:30 p.m.