Watch it

“30 Rock” (8:30 p.m., NBC). Jack Donaghy is a busy guy: Tonight he tries to find flaws in GE microwaves after sales soar without his help, and the writers discover he’s lent his sumptuous voice to the pronunciation guide in an online dictionary.

“Fringe” (9 p.m., Fox). This astoundingly good season keeps getting better and better. It’s so refreshing to see a series go for it and attempt bold storylines rather than just putter around in circles. Tonight we’re back on Red Earth, as a finally aware Olivia reconnects with a cab driver (Bubbles!) in her effort to return home to the other universe.

“It’s Always Sunny in Philadelphia” (10 p.m., FX). The bar gets infested by rats, and Charlie goes nuts trying to get rid of them.

“The League” (10:30 p.m., FX). It’s the guys’ high school reunion. Too bad this show doesn’t have a shorter lead time, it’d be kinda funny to chronicle a meltdown as one of the guys blows an 80-point fantasy football lead going into Monday night, thanks to Michael Vick’s amazing game.

“The Colbert Report” (11:30 p.m., Comedy Central). Sgt. Salvatore Giunta, the first living soldier awarded the Medal of Honor since Vietnam, makes an appearance. So does “Law & Order’s” Dick Wolf.

Record it

“Charlie Brown Thanksgiving” (8 p.m., ABC). The classic, with a feast of ice cream, popcorn and toast. Mmmmm.

“Community” (8 p.m., NBC). It’s such a hit-or-miss show for me. Some episodes — the crazy themed ones, usually — are brilliant, but the ordinary sitcomey ones fall flat. Tonight’s episode sounds so weird that I think it has potential for brilliance, as Jeff uncovers a conspiracy concerning a fake class, and Abed and Troy build a huge blanket fort.

“The Office” (9 p.m., NBC). Michael tries to drum up investors for Ryan’s new Internet company, and Dwight holds a hay festival in the parking lot.

“Burn Notice” (10 p.m., USA). Michael has to stop a thief from stealing chemical weapons from Venezuelan revolutionaries. Wow, I forgot the new season (errr, half season) started last week, I still need to catch up.

“MegaDrive” (10:30 p.m., MTV). Some dude rides a robot dolphins. That’s right, I said a robot dolphin. I totally want one now.

Skip it

“The Tonight Show with Jay Leno” (11:35 p.m., NBC). Jay Leno and George W. Bush, together. No. Just . . . . no.