The following is a list of every new TV episode airing on December 21, 2018. Titles are listed by time and then sorted alphabetically. Series and season premieres are in bold.
3/2 AM:
- 3 Below (Netflix, Series Premiere)
- 7 Days Out (Netflix, Series Premiere)
- Bad Seeds (Netflix, Original Movie Premiere)
- Bird Box (Netflix, Original Movie Premiere)
- Boru (aka Wolf) (Netflix, Series Premiere)
- The Casketeers (Netflix, Series Premiere)
- Derry Girls (Netflix, Series Premiere)
- Diablero (Netflix, Series Premiere)
- Last Hope (Netflix, Season 2 Premiere)
- Life Itself (Amazon, Special)
- LOL: Last One Laughing (Amazon)
- Marvel’s Runaways (Hulu, Season 2 Premiere)
- Perfume (Netflix, Series Premiere)
- Sirius the Jaeger (Netflix, Series Premiere)
- Struggle: The Life and Lost Art of Szukalski (Netflix, Original Documentary Premiere)
- Tales by Light (Netflix, Season 3 Premiere)
- Titans (DC Universe, Season 1 Finale)
- Vanity Fair (Amazon, Series Premiere)
Noon/11 AM:
- Blaze and the Monster Machines (Nickelodeon)
12:30 PM/11:30 AM:
- Top Wing (Nickelodeon)
6/5 PM:
- Teen Titans Go! (Cartoon Network)
6:30/5:30 PM:
- Unikitty! (Cartoon Network)
6:45/5:45 PM:
- Unikitty! (Cartoon Network)
8/7 PM:
- A Christmas Kiss (Lifetime, Original Movie Premiere)
- Dynasty (The CW)
- Gold Rush (Discovery Channel)
- A Home for the Holidays: The 20th Anniversary (CBS, One-Hour Special)
- Live PD: Rewind (A&E)
- Midnight, Texas (NBC)
- Ridiculousness (MTV)
- RuPaul’s Drag Race All Stars (VH1)
- Washington Week (PBS)
- Web of Lies (LMN, Original Movie Premiere)
8:30/7:30 PM:
- American Dream/American Knightmare (Showtime, Special)
- Firing Line with Margaret Hoover (PBS)
- Ridiculousness (MTV)
9/8 PM:
- Christmas at Grand Valley (Hallmark Movies & Mysteries, Original Movie Premiere)
- Craft in America (PBS, 90-Minute Season 10 Premiere)
- Diners, Drive-ins & Dives: Triple D Nation (Food Network)
- Gold Rush (Discovery Channel)
- Graveyard Carz (Motor Trend)
- Live PD: Top 40 Moments of 2018: Part 1 (A&E, Two-Hour Special)
- Love After Lockup (WE)
- Married to Medicine: Reunion Part 1 (Bravo, One-Hour Special)
- My Lottery Dream Home (HGTV)
- Tanked (Animal Planet)
- Z Nation (Syfy)
10/9 PM:
- 20/20 (ABC)
- Dateline NBC (NBC)
- Master of Arms (Discovery Channel, Season 1 Finale)
- Mike Judge Presents: Tales From the Tour Bus (Cinemax, Season 2 Finale)
- Secrets of the Morgue (ID)
- The Shop (HBO, Special)
- Sommore: A Queen with No Spades (Showtime, One-Hour Special)
- Van Helsing (Syfy)
10:30/9:30 PM:
- Craft in America (PBS, Season 10 Finale)
11/10 PM:
- eLeague: Rocket League 2018 – Semifinal 2 (TBS)
- Extreme Cake Makers (Cooking Channel, New Time Slot)
- Unprotected Sets (Epix, Season 1 Finale)
Check out the Amazon Prime Video store for any episodes you may have missed. Buying from the link included helps keep this blog running.