8 p.m., FOXDavid Boreanaz) and Brennan (Emily Deschanel) pretend to be a married couple at Brennan's high school reunion to investigate the death of one of her former classmates. A little bird told me there's going to be a slow dance involved...
9 p.m., FOXPeter Weller, a.k.a. RoboCop, guest-stars as Alistair Peck, a powerful man whom the Fringe Division suspects is connected to the mysterious deaths of several commuters.
9 p.m., NBC
Saturday Night Live in the 2000s: Time and AgainThis special program highlights the best and worst moments from the last 10 years of SNL with commentary from current castmembers (like Kristen Wiig and Bill Hader), former castmembers (like Will Ferrell, and Chris Kattan), and big-name hosts (like Alec Baldwin and Christopher Walken). Translation: NBC would like to apologize for how much SNL has started to suck.
9 p.m., CWJared Padalecki) and Dean (Jensen Ackles) team up with Castiel (Misha Collins) to battle Zachariah (Kurt Fuller) and prevent a war on Earth. Don't forget to eat a hearty breakfast, boys!
10 p.m., BRAVO
Also on the airwaves...
FlashForward, 8 p.m., ABC
Survivor, 8 p.m., CBS
The Vampire Diaries, 8 p.m., CW
CSI, 9 p.m., CBS
Project Runway, 10 p.m., LIFETIME
Randy Jackson Presents: America's Best Dance Crew, 10 p.m., MTV
The Sarah Silverman Program, Season 3 finale, 12 a.m., COMEDY
Important Things with Demetri Martin, Season 2 finale, 12:30 a.m., COMEDY
What are you watching tonight?
Follow TV.com writer Stefanie Lee on Twitter: @StefAtTVDotCom