Weekly roundup of science fiction and fantasy shows (as well as movies/specials of note) on the Prime Time TV schedule, also including programs that may be of interest to genre fans. Air dates and times subject to change without notice.

The last of the regular season shows wraps up this week as The CW’s Legends of Tomorrow has its season finale on Monday. That one will be returning next year at Mid-Season to participate in the Crisis on Infinite Earths cross-over event. On Tuesday, the new CBS action show with hints of Indiana Jones Blood and Treasure has its debut with a two-hour opener (see trailer below). On Friday, DC Universe’s Doom Patrol wraps up its first season (I had incorrectly indicated that show was ending a few weeks back). And on Sunday, HBO is airing the behind the scenes special Game of Thrones: The Last Watch to give that show its final send off. The Summer season is almost upon us and that will be bringing more premieres of sci fi and fantasy shows. You can see the upcoming schedule at this link and you can get a look at the preliminary Fall schedule at this link.

Watch the Twilight Zone revival and Star Trek: Discovery on CBS All Access (and the new Jean-Luc Picard series is on the way later this year). Try 1 week FREE!

Prime Time Sci Fi TV Listings for the Week of May 20 – May 26:

Links are to the show pages on this site with additional series info and current status. Broadcast/Cable Listings Source: TVGuide.com

Monday May 20

Legends of Tomorrow (CW) 8:00-9:00 Season 4 Finale

Tuesday May 21

Blood and Treasure (CBS) 9:00-11:00 2 Hr Series Premiere

The 100 (CW) 9:00-10:00

Wednesday May 22

What We Do in the Shadows (FX) 10:00-10:30

Happy (Syfy) 10:00-11:00

Thursday May 23

iZombie (CW) 8:00-9:00

Cloak and Dagger (Free) 8:00-9:00

The Twilight Zone (CBSA) Streaming

Friday May 24

Agents of SHIELD (ABC) 9:00-10:00

Doom Patrol (DCU) Streaming Season Finale

Saturday May 25

No Genre Entries

Sunday May 26

A Discovery of Witches (AMC) 9:00-10:00 Season Finale

Game of Thrones (HBO) 9:00-11:00 Behind the Scenes Special

Streaming Premieres

No Streaming Premieres

You can see the complete list of streaming shows at this link

Highlights for the Week of May 27

The InBetween (NBC) 10:00-11:00 Wednesday, Series Premiere

Swamp Thing (DCU) Streaming Friday, Series Premiere

Schedule Notes: If a show is listed as On Hiatus, that means that it is taking a break of more than two episodes in a row. If a streaming series is included in the listings after its premiere date, then it releases new episodes once per week on that day as opposed to releasing its entire season at one time.

More from CancelledSciFi.com:

Follow our Sci Fi TV News Briefs column for a rundown of the latest news and our Sci Fi TV Development column for updates on what is in development.

Check out our Sci Fi TV Schedule for debut and season finale dates and follow our Weekly Listings for a rundown of the shows airing in the current week.

Look back at the classics of sci fi and fantasy television with Classics Sci Fi TV.