The Amazing Race, 8 p.m., CBS
Twenty seasons, my friends. It seems like just yesterday I set my eyes on Phil for the first time, and here we are, celebrating our 20th anniversary together. We open the season by heading to Argentina, and skydiving.
Celebrity Apprentice, 9 p.m., NBC
Wow. What a list. And I honestly mean that. Obviously not Adam Carolla, but holy smokes! Cheryl Tiegs! Arsenio Hall! Clay Aiken! George Takei! Lou Ferrigno! Debbie Gibson! Awesome!
Masterpiece Classic, 9 p.m., PBS
The two-hour season finale of Downton Abbey, and of course it is Christmas. I thought I was not going to survive the Spanish flu, never mind poor Lady Grantham. I did love Dr. Clarkson going around telling everyone to drink milk and cinnamon, and “the next few hours are critical.” Like he had anything to do with who lived and who died.