Vikings (History at 9) Bjorn is welcomed extravagantly in North Africa.
Knightfall (History at 10) Landry and Tancrede try to find where the Holy Grail is located.
Happy! (Syfy at 10) Happy helps Sax track down his daughter.
Survivor (CBS at 8) One contestant will be crowned the winner and receive the $1 million prize on the two-hour Season 35 finale.
America's Badlands (Smithsonian at 8) Documentary about South Dakota's Badlands and its various animals, including the bison, burrowing owl and the prairie dog.
Are You the One? (MTV at 10) Find out which Season 6 couples are still together on Part 2 of the reunion.
Survivor (CBS at 11) The one-hour live reunion show will feature contestants from Season 35.
La Casa de Papel (a.k.a. Money Heist) (Netflix streaming) Thieves lock their hostages in the Royal Mint of Spain as the mastermind manipulates the police.
Daily Show (Comedy Central at 11) "It's the End of the Year as We Know It."
Fallon (NBC at 11:34) Christoph Waltz, Beanie Feldstein, Cardi B, Erykah Badu.
Meyers (NBC at 12:37) Ansel Elgort, Martha Stewart, Nico de Soto.