This Is Us (NBC at 9) Kate and Toby take a major step in their relationship. In a flashback, Jack and Rebecca finalize Randall's adoption.
Blackish (ABC at 9) The Johnson women support Diane when she reaches a life milestone.
Bull (CBS at 9) Bull helps represent a teacher involved in a cheating scandal.
Drop the Mic (TBS at 10:30) Niecy Nash battles Cedric the Entertainer, while singers Jason Derulo and Liam Payne put their rap skills to the test.
Damnation(USA at 10) This period drama, set in Iowa during the Great Depression, follows an imposter preacher (Killian Scott) planning an uprising against capitalist interests. Logan Marshall-Green of "Quarry" plays the strikebreaker hired to discourage an insurrection by any means necessary.
30 for 30: Nature Boy (ESPN at 10) ESPN's documentary series looks at the life and career of professional wrestler Ric Flair.
Teachers (TV Land at 10) Season 2 returns with new episodes.
The Curse of Oak Island (History at 9) Season 5.
Conan (TBS at 11) Keegan-Michael Key, Jon Dore.
Daily Show (Comedy Central at 11) Jeff Ross.
Colbert (CBS at 11:35) Jason Segel, Jeff Fager, Lesley Stahl, Mavis Staples.
Kimmel (ABC at 11:35) Carey Mulligan, Gael García Bernal, Darius Rucker.
Corden (CBS at 12:37) Rainn Wilson, Jack Whitehall
Meyers (NBC at 12:37) John Lithgow, Jonathan Groff, Michael Lewis.