RETURNING SHOW: Back for a second, extended season on its new network, “Whose Line Is It Anyway?” (CW at 8 p.m.) has vets Ryan Stiles, Wayne Brady and Colin Mochrie putting their comedic skills to the test with spontaneous improv challenges and a special guest each episode. Kat Graham, of “The Vampire Diaries,” guest stars in the season premiere.
When Keegan gets taken into custody on “Rake” (Fox at 8), he suspects little blowback, but a media firestorm ensues once it’s leaked that he was taken in on suspicion that he murdered the mayor.
After a double homicide is linked to a traveling carnival on “Grimm” (NBC at 9), Monroe and Rosalee go undercover.
“Shark Tank” (ABC at 9) hears pitches for energy bars enriched with crickets, a thief-proof garage lock, a shower cap that can rid you of bedhead and an e-commerce idea for textbook rentals.
Reviewed by TV critic Hank Stuever on Page C1, “Geraldine Ferraro: Paving the Way” (Showtime at 9) is an ode to the first female vice presidential candidate representing a major political party. The documentary, which was orchestrated by her daughter Donna Zaccaro, features interviews with former presidents George H.W. Bush and Bill Clinton, former secretaries of state Hillary Rodham Clinton and Madeleine Albright, and shows never-before-seen archival footage that helps give a complete image of her life and legacy.
Virginia sees a ghost on “Raising Hope” (Fox at 9:30) after ceasing to believe in all things paranormal, and once Burt finds out who the specter really is, he encourages Virginia to believe again.
Suspicions arise on “Hannibal” (NBC at 10) when Beverly investigates a mural-killer case and secretly consults Will, who thinks Hannibal is behind it all.
Don jets to Tanzania in search of the rare zultanite gemstone on “Game of Stones” (Discovery at 10).
Actor Kevin Bacon and animal expert Jeff Musial are on “The Tonight Show Starring Jimmy Fallon” (NBC at 11:35), with a performance from Ty Dolla $ign, and Heart’s Ann Wilson sits in with the Roots.
Olympic snowboarder Kaitlyn Farrington and actress Lupita Nyong’o stop by the “Late Show With David Letterman” (CBS at 11:35), with music from Little Dragon.
Comedian Ricky Gervais and television personality NeNe Leakes come to “Jimmy Kimmel Live” (ABC at 11:35), along with a musical perfromance from Kongos.