TV: 'Office' celebrates 100/Alda hunts for kidney on '30 Rock'

Fans of "The Office" (NBC 9/8c) will enjoy a "toofer" tonight as the show celebrates episode 100 and the season five finale.
Okay, so this is awesome.
I've been so excited about "The Office" season finale since I learned Amy Ryan (Gone Baby, Gone) was returning as Michael's love interest, Holly, but the producers upped the ante when they announced Idris Elba (The Wire) would be back as Charles Miner, the corporate douchebag boss we all love to hate.
Episode 100 centers around the company's annual picnic and promises to make new character connections while rekindling some old fires.
Here's hoping for a random Holly/Charles hookup that leaves Michael with some sand in his face during the off season. Don't get me wrong, I love Michael, but that would just be hilarious.
Check out Margret Lyon's article for more info on episode 100, "Company Picnic."
Meanwhile, on "30 Rock," Jack's dad, Milton (Alan Alda), returns to tighten the screws on his newly found son over a badly needed kidney. Tracy speaks at a high school graduation and looks to Kenneth for advice in overcoming some of his teenage fears. Get all the details on the episode here (mild spoilers).