The four-part “Underground Railroad: The Secret History” (science, 10 p.m.) looks at new information about the 19th century paths to freedom.
Speaking of four hour documentaries, the full “Janet Jackson” (Lifetime, 8 and 10 p.m.) runs back-to-back tonight.
They can’t possibly be as entertaining as last weekend’s games, but the NFL conference championships have Cincinnati at Kansas City (CBS, 3 p.m.) and San Francisco at Rams (Fox, 6:30 p.m.).
The latest dating reality show comes without running water and electricity. Yes, it’s “Love Off the Grid” (Discovery+, streaming).
“The Righteous Gemstones” (HBO, 10:05 p.m.) flashes back to Christmastime 1993.
Rue tries to sober up for Jules on “Euphoria” (HBO, 9 p.m.).
“Around the World in 80 Days” (PBS, 8 p.m., check local listings) reaches Hong Kong.
Prince unleashes a strategy on the trading floor and maybe someone else dies on a Peleton on tonight’s “Billions” (Showtime, 9 p.m.).
“Claws” (TNT, 9 p.m.) is about to be visited by a DEA investigation.
Sam and Joel look into Rick’s sudden generosity on “Somebody Somewhere” (HBO, 10:30 p8 p.m.).