Ryan Seacrest, Lucy Hale and Billy Porter host New Year’s Eve festivities in New York’s Times Square.

(Originally Aired: Thursday Dec 31, 2020)

Ryan Seacrest, Lucy Hale and Billy Porter host New Year’s Eve festivities in New York’s Times Square.

(Originally Aired: Thursday Dec 31, 2020)

Hoda Kotb and Jenna Bush Hager look back at the year’s most entertaining and talked about videos and trends, and highlight the most inspirational moments of 2020; celebrities share their hopes for the new year.

Celebrity hosts emcee the exciting countdown to the new year, live in New York’s Times Square, with special musical performances and surprise guests as America bids farewell to 2020.

(Originally Aired: Thursday Dec 31, 2020)

The year’s top music artists and surprise celebrity guests celebrate in Los Angeles with hosts Joel McHale and Ken Jeong.

(Originally Aired: Thursday Dec 31, 2020)

Performers unite to celebrate the strength of Americans; featuring the American Pops Orchestra conducted by Luke Frazier and the National Symphony Orchestra conducted by Joann Falletta.

Comic, actor and writer Dave Chappelle receives The Mark Twain Prize for American Humor, presented by the John F. Kennedy Center for the Performing Arts.

The Doctors share an adventure across time and space; an ancient battle reaches a devastating conclusion.

(Originally Aired: Saturday Nov 23, 2013)

The Doctor makes sacrifices to save a town called Christmas.

(Originally Aired: Wednesday Dec 25, 2013)

5TH SEASON PREMIERE – SPECIAL NIGHT & TIME

(Originally Aired: Thursday Dec 31, 2020)

Additional content, exclusive fun facts and behind-the-scenes insights from the producers and stars of the show.

(Originally Aired: Thursday Dec 31, 2020)

When Savannah brings home her new boyfriend, Todd takes the opportunity to test his intentions; Chase and Savannah step up and help when Grayson struggles with a math test.

(Originally Aired: Tuesday Dec 04, 2018)

Todd tries to teach Julie a lesson about keeping track of her jewelry after she loses another expensive piece; Nanny Faye enlists Chase’s help for a neighborhood porch competition.

(Originally Aired: Tuesday Dec 04, 2018)

Winter is near; residents of Alaska use the summer months to prepare.

(Originally Aired: Tuesday Dec 22, 2020)

In this enhanced episode, the difference between life and death is in a moment’s decision.

(Originally Aired: Friday Jan 01, 2021)

A first look at the upcoming season of the series, “Life Below Zero;” tough Alaskans must rely on primitive skills to survive through the spring.

(Originally Aired: Monday Sep 03, 2018)

In this enhanced episode, Sam arrives in West Virginia to study the curse of the Mothman.

(Originally Aired: Friday Jan 01, 2021)

Skylar Neese was everything her parents hoped for, but their world turned upside down when she vanished without a trace. At first, police thought she ran away but hints on social media pointed to a more sinister reason for her disappearance.

(Originally Aired: Thursday Dec 31, 2020)

Russel Douglas is a troubled father hoping for a fresh start when he is found shot dead in his car; the investigation turns up few clues until an anonymous tipster sends detectives on an international manhunt to unravel a mystery.

(Originally Aired: Monday Sep 10, 2018)

A strange complex of tunnels on the grounds of a mansion are under lock and key for a century; since its rediscovery, some believe its mysterious place is a gate to hell; new discoveries reveal its secret purpose and why it was abandoned.

(Originally Aired: Thursday May 16, 2019)

From secluded islands to cities perched on cliffs, abandoned structures and failed engineering projects can be found in the world’s most remote locations; using cutting-edge technology, experts reveal how they were built and why they were abandoned.

(Originally Aired: Thursday Dec 31, 2020)