ANOTHER DAY/ANOTHER TIME: CELEBRATING THE MUSIC OF "INSIDE LLEWYN DAVIS”: Joan Baez and Colin Meloy perform. (Brigitte Lacombe/Showtime)

To honor Nelson Mandela’s life and legacy, local channel WUSA 9 airs “Mandela: The Man & The Message” (7 p.m.), a special half-hour segment hosted by Derek McGinty and Atlanta anchor Brenda Wood from South Africa.

It’s Samantha to the rescue yet again on “The Carrie Diaries” (CW at 8) when Carrie reads an ugly, untrue rumor about herself in a NYC gossip paper. Meanwhile, Walt has to deal with his own work rumor and Sebastian helps Maggie with a medical emergency.

A deadly crime wave culminates on this two-hour episode of “Grimm” (NBC at 9) and it looks like it might even be linked to a 100-year-old urban legend. There’s even more spook in the second hour when an old Wesen tale of an evil Santa Claus-like creature comes to life when delinquent teens begin to disappear.

RETURNING SHOW: From the creators of “Deadliest Catch,” reality show “Bering Sea Gold” (Discovery at 10) returns for its third season with the Pomrenke’s new megadredge device and a new captain on board. Emily Riedel joins the crew in Nome, Alaska and her first day turns disastrous. Then, danger strikes two more castmembers when Zeke has a run-in with the law and Steve ends up stranded on an iceberg.

“Another Day/Another Time: Celebrating The Music of ‘Inside Llewyn Davis’ ” (Showtime at 10) is a behind-the-scenes look into the making of a concert inspired by the latest Coen Brothers film that’s set during the 1960s Greenwich Village folk music scene. Recorded in September in New York, the documentary includes performances from Jack White, Patti Smith, Gillian Welch, the Avett Brothers, Conor Oberst, Joan Baez and Colin Meloy.

RETURNING SHOW: Slugged as Norway’s most popular television show, “Lilyhammer” (Netflix) is back for its second season. Ex-Mafia boss Frank “The Fixer” Tagliano, played by Bruce Springsteen’s E Street Band member Steven Van Zandt, is back to his life as Giovanni Henriksen, but the Norwegian calm is starting to get to him.

Actor and comedian John Witherspoon stops by the “Late Show With David Letterman” (CBS at 11:35), with musical guest Seasick Steve

Television host Carson Daly comes to “The Tonight Show With Jay Leno” (NBC at 11:35), with Billy Ray Cyrus.

Actor and walking cheekbones Benedict Cumberbatch joins “Jimmy Kimmel Live” (ABC at 11:35), with a performance from R. Kelly.

— Rachel Lubitz