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Many of us become invested in television shows. We grow to love the characters, the settings, the plotlines, and the drama, and we look forward to losing ourselves for however brief a moment each week as we delve into the fictional worlds of our favorite programs. Some TV shows are immensely popular are enjoy global adoration. Which makes it all the more tricky when it comes time to put an end to it all.
We all know a TV show can't last forever. We know the day will arrive when we must say goodbye and when that day comes, we expect that it will be a spectacular send-off, one that will see our favorite characters living out their fairy tales and leaving viewers satisfied with the results. Even though we understand this is purely fiction, we root for them to win, although just as in life, sometimes things just don't end up the way we want them to. (Click here to read about the most irritating TV characters.)
To determine TV show endings that failed to deliver, 24/7 Tempo reviewed IMDb data on audience reception for television finales. Series finale episodes for all shows were ranked based on the percentage decline in the average IMDb user rating of the finale episode from the overall average IMDb user rating for all episodes of the show. Only finales with at least 500 user reviews on IMDb were considered. IMDb user data is current as of October 2023.
25. Sherlock, "The Final Problem"
- Ran for: Four seasons
- Finale rating: 8.2/10 (-9.9% decline from show average)
- Full series rating: 9.1/10 (970,044 votes)
- Series finale airdate: January 15, 2017
24. The 100, "The Last War"
- Ran for: Seven seasons
- Finale rating: 6.7/10 (-11.8% decline from show average)
- Full series rating: 7.6/10 (267,510 votes)
- Series finale airdate: September 30, 2020
23. Columbo, "The Conspirators"
- Ran for: Seven seasons
- Finale rating: 7.3/10 (-12.0% decline from show average)
- Full series rating: 8.3/10 (39,881 votes)
- Series finale airdate: May 13, 1978
22. Seinfeld, "The Finale"
- Ran for: Nine seasons
- Finale rating: 7.8/10 (-12.4% decline from show average)
- Full series rating: 8.9/10 (339,845 votes)
- Series finale airdate: May 14, 1998
21. Castle, "Crossfire"
- Ran for: Eight seasons
- Finale rating: 7.0/10 (-13.6% decline from show average)
- Full series rating: 8.1/10 (170,298 votes)
- Series finale airdate: May 16, 2016
20. The Blacklist, "Raymond Reddington (No. 00): Good Night"
- Ran for: 10 seasons
- Finale rating: 6.6/10 (-17.5% decline from show average)
- Full series rating: 8.0/10 (272,312 votes)
- Series finale airdate: July 13, 2023
19. Supernatural, "Carry On"
- Ran for: 15 seasons
- Finale rating: 6.9/10 (-17.9% decline from show average)
- Full series rating: 8.4/10 (469,038 votes)
- Series finale airdate: November 19, 2020
18. Girls, "Latching"
- Ran for: Six seasons
- Finale rating: 6.0/10 (-18.9% decline from show average)
- Full series rating: 7.4/10 (76,065 votes)
- Series finale airdate: April 16, 2017
17. Star Trek, "Turnabout Intruder"
- Ran for: Three seasons
- Finale rating: 6.8/10 (-19.0% decline from show average)
- Full series rating: 8.4/10 (89,997 votes)
- Series finale airdate: June 3, 1969
16. Shameless, "Father Frank, Full of Grace"
- Ran for: 11 seasons
- Finale rating: 6.5/10 (-23.5% decline from show average)
- Full series rating: 8.5/10 (268,000 votes)
- Series finale airdate: April 11, 2021
15. The Man in the High Castle, "Fire from the Gods"
- Ran for: Four seasons
- Finale rating: 6.0/10 (-24.1% decline from show average)
- Full series rating: 7.9/10 (107,387 votes)
- Series finale airdate: November 15, 2019
14. Pretty Little Liars, "Til Death Do Us Part"
- Ran for: Seven seasons
- Finale rating: 5.5/10 (-25.7% decline from show average)
- Full series rating: 7.4/10 (175,000 votes)
- Series finale airdate: June 27, 2017
13. Younger, "Older"
- Ran for: Seven seasons
- Finale rating: 5.7/10 (-26.9% decline from show average)
- Full series rating: 7.8/10 (25,000 votes)
- Series finale airdate: June 10, 2021
12. The Good Wife, "End"
- Ran for: Seven seasons
- Finale rating: 6.1/10 (-27.4% decline from show average)
- Full series rating: 8.4/10 (80,597 votes)
- Series finale airdate: May 8, 2016
11. Chilling Adventures of Sabrina, "Chapter Thirty-Six: At the Mountains of Madness"
- Ran for: Two seasons
- Finale rating: 5.3/10 (-28.4% decline from show average)
- Full series rating: 7.4/10 (104,937 votes)
- Series finale airdate: December 31, 2020
10. The Twilight Zone, "The Bewitchin' Pool"
- Ran for: Five Seasons
- Finale rating: 6.5/10 (-28.6% decline from show average)
- Full series rating: 9.1/10 (89,709 votes)
- Series finale airdate: June 19, 1964
9. The Flash, "A New World: Part 4: Finale"
- Ran for: Nine seasons
- Finale rating: 5.3/10 (-29.3% decline from show average)
- Full series rating: 7.5/10 (363,757 votes)
- Series finale airdate: May 24, 2023
8. Star Trek: Enterprise, "These Are the Voyages…"
- Ran for: Four seasons
- Finale rating: 5.3/10 (-29.3% decline from show average)
- Full series rating: 7.5/10 (57,295 votes)
- Series finale airdate: May 13, 2005
7. True Blood, "Thank You"
- Ran for: Seven seasons
- Finale rating: 5.4/10 (-31.6% decline from show average)
- Full series rating: 7.9/10 (255,358 votes)
- Series finale airdate: August 24, 2014
6. How I Met Your Mother, "Last Forever: Part Two"
- Ran for: Nine seasons
- Finale rating: 5.5/10 (-33.7% decline from show average)
- Full series rating: 8.3/10 (713,016 votes)
- Series finale airdate: March 31, 2014
5. Dexter, "Remember the Monsters?"
- Ran for: Eight seasons
- Finale rating: 4.7/10 (-46.0% decline from show average)
- Full series rating: 8.7/10 (748,830 votes)
- Series finale airdate: September 22, 2013
4. Two and a Half Men, "Of Course He's Dead: Part 1 & 2"
- Ran for: 12 seasons
- Finale rating: 3.8/10 (-46.5% decline from show average)
- Full series rating: 7.1/10 (274,590 votes)
- Series finale airdate: February 19, 2015
3. Game of Thrones, "The Iron Throne"
- Ran for: Eight seasons
- Finale rating: 4.0/10 (-56.5% decline from show average)
- Full series rating: 9.2/10 (2,213,032 votes)
- Series finale airdate: May 19, 2019
2. Killing Eve, "Hello, Losers"
- Ran for: Four seasons
- Finale rating: 3.4/10 (-58.0% decline from show average)
- Full series rating: 8.1/10 (128,396 votes)
- Series finale airdate: April 10, 2022
1. House of Cards, "Chapter 73"
- Ran for: Six seasons
- Finale rating: 2.6/10 (-70.1% decline from show average)
- Full series rating: 8.7/10 (521,731 votes)
- Series finale airdate: November 2, 2018