Friday Night Lights (8pm, NBC) - This "new" season of "Friday Night Lights" already ran on DirecTV, but it's making its NBC debut tonight. I beg you to watch. It's a really fantastic show, but chronically under-appreciated and under-promoted by its network. Tonight's show picks up where Season 3 left off: Coach Taylor (Kyle Chandler) has been fired from the Dillon Panthers and must start over with the raggedy East Dillon Lions, over on the more diverse side of town. And even though they've graduated, FNL favorites Matt Saracen and Tim Riggins are still around and still prominent in the storylines. Coach is at a totally new school, so there are a few new cast members, too, with the standout being Michael B. Jordan, who also played Wallace on "The Wire" ("Where's Wallace at? Where's the boy, String!?"). Watch it.
Kitchen Nightmares (9pm, Fox) - The stubborn owner of a Danish eatery in Miami doesn't want to update anything (then why did he invite this show to his restaurant!?!?), but Chef Ramsay finds something in the cooler that causes him to shut the place down during the middle of dinner service. I don't even want to imagine.
Primetime: What Would You Do? (9pm, ABC) - The third season begins on this human interest show that puts actors in dangerous/controversial situations and then judges the strangers who don't intervene. It's equal parts fascinating and exploitative.
Real Time with Bill Maher (10pm, HBO) - Bill interviews historian Alan Brinkley and comedian Sarah Silverman.
Who Do You Think You Are (8pm, NBC) - Tonight, football great Emmitt Smith gets help tracing his roots to Burnt Corn, Alabama, and beyond.
Winter Olympics (NBC) - Ryan Miller and the US men's hockey team head into the semi-finals, Lindsey Vonn competes in her final event, and Apolo Ohno races for short track gold. Also, curling gold and bronze games for women.
Winter Olympics (NBC) - Figure skating, alpine skiing, ski jumping, and
Bill Maher brought his stand-up show to a nearly-packed house at Raleigh Memorial Auditorium last night, and while he was sharp and on his game, he was also embraced in the welcoming arms of "his people."

Bill Maher, best-selling author and host of HBO's "Real Time with Bill Maher," is doing two stand-up shows in Raleigh this week, and both are being taped for HBO.
Whale Wars (9pm, Animal Planet) - Capt. Watson tries to cut off the transfer of a dead whale between Japanese ships, and that leads to a full-speed collision. To see the events that lead up to this dangerous encounter, tune in for the repeat eps at 7pm and 8pm.
Neil Diamond: Hot August Night, NYC (8pm, CBS) - Performances from Diamond's recent concerts at Madison Square Garden in New York, plus a visit to his childhood home in Brooklyn.