On TV tonight
The 12th Annual A Home for the Holidays, 8 p.m., CBS Melissa Etheridge, Maroon 5, Ricky Martin, Katy Perry and Nelly are performing; Julie Chen, Sara Gilbert, Sharon Osbourne, Holly Robinson Peete, Marissa Jaret Winokur, Leah Remini and Mira Sorvino are talking. That's a lot of houseguests.
Nazi Hunters, 8 p.m., NatGeo Nazi Klaus Barbie liked killing French people so much, he resumed his pastime after moving to Bolivia.
Wild Justice, 10 p.m., NatGeo After a long investigation, authorities discover the purveyor of illegal pirahnas is only 15 years old. Oh, spoiler alert.
E! True Hollywood Story: Gwyneth Paltrow, 10 p.m., E! Finally, we'll get to the bottom of whether she went crazy from her weird diet, or started dieting like that because she went crazy.
Celebrity Rehab with Dr. Drew, 10 p.m., VH1 Is anyone else finding the entire cast annoying this season? And do Gummi Bear and Keyshia Cole's mom even count as celebrities? We had hope for Eric Roberts, but yeesh.
— Joshua Gillin firstname.lastname@example.org