* I'm a Celebrity...Get Me Out of Here! (8 pm/ET NBC)
Do you ever wish some "celebrities," like Spencer Pratt, Heidi Montag and Janice Dickinson, would just go away? Well now they are. Sort of. In this reincarnation of the 2003 series that aired on ABC, 10 shameless famous people are dropped in the heart of the Costa Rican rain forest to have their survival skills tested in a series of challenges voted on by viewers. The C-listers featured on the previous version included Cris Judd (J.Lo's ex), Bruce Jenner and Melissa Rivers. And hey, we haven't seen much of Cris Judd lately, so maybe one day "Speidi" really will go away. We can only hope!
* The Tonight Show with Conan O'Brien (11:35 pm/ET NBC)
After more than three months off the air, Conan O'Brien makes the leap to the 11:35 pm/ET time slot. Replacing Jay Leno as host, the lovable carrot top settles into his new studio on the West Coast, but some things haven't changed. The band, including leader Max Weinberg, also made the move to L.A., and Andy Richter is back on the show - this time as announcer. Will Ferrell kicks things off as Conan's first guest (he was the last guest on Late Night, too), and Pearl Jam perform.
* Jon & Kate plus 8 (9 pm/ET TLC)
Last week's awfully somber Season 5 premiere drew record ratings for TLC, as Jon and Kate offered a surprisingly honest glimpse into their troubled marriage. From the looks of it, a reconciliation is nowhere in sight, so we doubt Jon will be too involved in tonight's episode, which was filmed on Kate's birthday. But have no fear, Duff Goldman is here. The fun-loving star of Ace of Cakes will be on hand to help the kiddies make their mom a memorable birthday cake.
* Medium (10 pm/ET NBC)
Domestic dream weaver Allison DuBois continues to put the "super" in "supernatural" in tonight's Season 5 finale. (The paranormal crime-time show is slated to rematerialize for a sixth season in September, moving from NBC to CBS.) Allison has endured ghastly and ghostly imagery throughout the years, but tonight's visions are perhaps her most nightmarish yet. She dreams of her very own family's massacre, only to then be comforted by an unfamiliar man. But when this male stranger appears in her actual life, a shuddering Allison fears that her chilling visions will come true.
* The Hills Presents: Speidi's Wedding Unveiled (11 pm/ET MTV)
Spencer Pratt and Heidi Montag tied the knot - officially - in last night's Season 5 finale. This 30-minute special offers a behind-the-scenes look at the attention-loving pair as they prepared to say "I do" in the fairy-tale wedding Heidi has always dreamed of.