Big Bang Theory (CBS at 8) The science-friendly sitcom moves to its regular time slot.
The Good Place (NBC at 8:30) Eleanor lets Chidi in on a secret in the midseason finale.
Young Sheldon (CBS at 8:30) Sheldon consults a self-help book in his attempt to make a new friend.
Scandal (ABC at 9) Shonda Rhimes and company promise something "jaw-dropping" for the show's midseason finale.
Will & Grace (NBC at 9) Minnie Driver ("Speechless") guest-stars in the fall finale.
Project Runway (Lifetime at 9) The designers are tasked with creating winter-themed looks. Katie Holmes is the guest judge.
How to Get Away With Murder (ABC at 10) Annalise forges ahead with her class-action lawsuit.
Back (Sundance Now streaming) An underachiever takes over his family's business in this six-part comedy, co-produced with U.K.'s Channel Four.
Flip or Flop Fort Worth (HGTV at 9) The real-estate franchise puts down Texas roots.
S.W.A.T. (CBS at 10) Shemar Moore ("Criminal Minds") leads this police drama based on the 1970s TV series and the 2003 film it inspired.
Life in Pieces (CBS at 9:30) Season 3.
Million Dollar Listing Los Angeles (Bravo at 9) Season 10.
Conan (TBS at 11) Mila Kunis, Maria Bamford, King Krule.
Daily Show (Comedy Central at 11) Gabrielle Union.
Fallon (NBC at 11:34) Alec Baldwin, Finn Wolfhard, Gaten Matarazzo, Caleb McLaughlin, Noah Schnapp, Elbow.
Colbert (CBS at 11:35) Whoopi Goldberg, Kathryn Hahn, Courtney Barnett, Kurt Vile.
Kimmel (ABC at 11:35) Guest host Jennifer Lawrence, Kim Kardashian, Linkin' Bridge.
Corden (CBS at 12:37) Kristen Bell, Dianna Agron, Gary Clark Jr.
Meyers (NBC at 12:37) Rosie O'Donnell, David France.