Warning : This list contains major spoilers for several TV display .

This list control a reference to intimate violation .

Summary

Some of thebest TV shows of all timehave one particular time of year that is recognise as having irrevocably changed the show . A season midway through a serial that marks a sack in tone or musical style will have this event . instead , major character leave the show or new ones being introduced will result in authoritative changes to the overall plot .

On the other handwriting , a certain season can alter the perceptual experience of an total TV show because it marks a change in the caliber of writing . While some show begin disadvantageously before thing pick up in the second or third time of year , others hit a point where the writers run out of ideas , and one season is accredit as the beginning of the end . For exemplar , the later time of year ofThe Twilight ZoneandGame of Thronesclearly demonstrate how thing were headed downhill .

11Downton Abbey Season 3

Sybil and Matthew both die.

Downton Abbeyseason 3 was draw to contend with multiple major actors leaving the series . WhileSiobhan Finneran was indite out as consume Miss O’Brien take another line of work , members of the Crawley family impersonate a large job . The untried Crawley daughterSybil ( Jessica Brown Findlay ) dies in childbirthmidway through the season , and the acres ’s heritor Matthew ( Dan Stevens ) pop off in a railway car clangoring just after the parentage of his son in the time of year finis .

10Grey’s Anatomy Season 11

Derek dies, first season without Christina, and the introduction of the “sisters.”

Grey ’s Anatomychanged forever when Sandra Oh impart the show , with her character Christina taking a major job opportunity abroad . WhileGrey ’s Anatomyis still finding its terms after Christina ’s departure , the show ’s chief wild-eyed storyline betweenMeredith and Derekcomes to an end when Derek is killed in a car crash near the closing of time of year 11.The time of year ends with Meredith dancing at a wedding with Maggie and Amelia , precede the trio of " sisters " who will be Meredith ’s master backup and the nidus of many storylines in succeeding season . Grey ’s Anatomyseason 11 is essentially an overall , establishing a fresh focal cast .

Some classic TV show were written off before they ever have a chance , but compelling storytelling is always enough to silence the doubters .

9Buffy The Vampire Slayer Season 6

The season is ruined by Buffy’s toxic relationship with Spike.

Spike and Buffy ’s relationshipinBuffy the Vampire Slayeris controversial , to say the least . The vampire Spike is first introduced in time of year 2 as a straightforward villain whom Buffy fights for a few seasonsbefore their enemies - to - devotee storyline begin in season 5 . However , Buffy choke in theBuffy the Vampire Slayerseason 5 ending . She then becomes depressed after being resurrected and begins a destructive relationship with Spike in time of year 6 .

Buffy struggling with her mental wellness after literally dying and having to deal with Dark Willow would have been a fine storyline on its own . However , Buffy the Vampire Slayerseason 6 is controversialbecause of Buffy and Spike ’s kinship , culminating in Spike sexually assaulting her after she breaks up with him . Buffy the lamia Slayerended after season 7,which problematically show Spike ’s repurchase and frames him as a hero .

8Stranger Things Season 3

The Russian lab becomes a threat to the residents of Hawkins.

Stranger Thingsseason 3 reveals thatthe Russians have a secret lab in Hawkins , while the post - credits shot confirms that they are also read the Upside Down . While the first two seasonsestablish the Hawkins Lab where Eleven was created , this is a fictional and cryptical scourge that conduce to the tone of a repulsion picture . When the Russians become the main menace , the series becomes a type of historic fiction that incorporates supernatural elements into the Cold War setting . Stranger Thingsseason 2 hints at the Russians’potential interest in the Upside Down , but they do not fully become part of the story until time of year 3 .

7The Twilight Zone Season 4

A change in episode runtime signaled a downturn for The Twilight Zone.

time of year 4 is recognized asthe big season ofThe Twilight Zone . During this season , The Twilight Zoneabruptly abandoned its half - hour episode format for long one - hour sequence , creating some awkwardly long storyline . This coincided with poorer writing , resulting in some of the worst episode of the show , admit " I Dream of Genie , " " Jess - Belle , " and " The Bard . " Despite time of year 5 ’s return to the half - hour format , it is not well - regarded either . This demonstrates how season 4 was at long last the goal ofThe Twilight Zone’sheyday .

6The Good Place Season 2

Nothing is the same after the Good Place is revealed to be the Bad Place.

The entire plot ofThe Good Placechanges when Eleanor right guesses ( for the first time ) that the ostensibly unadulterated paradise the main characters have been bring to is actually the Bad Place . While season 1 is about Eleanor endeavor to stay in " the Good Place , " think she has been sent there by error , season 2 onward extend the show ’s characterization of the afterlife with an more and more complicated plot . Michael ’s character is developed , as he is initially determine for his experimentation to make for without the human beings reckon the the true . Michael then becomes an ally of the humans as they attempt to avoid going to the tangible Bad Place .

5Doctor Who Season 12

The Timeless Child twist retconned all of Doctor Who.

Jodie Whittaker changedDoctor Whoby becoming the first woman to play the title fictional character . Additionally , the second season of her run as the Doctor retconned a major plot spot in the serial ' traditional knowledge . TheDoctor Whoseason 12 endingreveals that the Doctor is not a Time Lord , as has been the laying claim for most of the show ’s run . The Doctor is disclose to be the Timeless Child , a billion - year - old whose genetic science are the basis of the Time Lord race . Despite theTimeless Child twirl having no real effecton the patch , Doctor Whoseason 14 must wield the Timeless Childretcon in one way or another .

4Game Of Thrones Season 7

Daenerys and Jon meet and the writing quality takes a downward turn.

WhileGame of Thrones’final seasonis generally disliked , its 7th time of year is mostly ok . Some indicators of succeeding narration job seem , such ashints of Daenerys becoming the " Mad Queen . “However , Game of Thronesseason 7 also commemorate a turn point in the series as many separate storylines begin to meet . Jon and Danyfinally encounter , while the remaining Stark sibling reunite ( Jon does not see Arya and Bran again until time of year 8 , but Sansa compose to tell him they hold up ) . Season 7 is in a gray area , as many long - look storylines come to fruition while the secret plan elements that will destroy the show begin to take shape .

3Lost Season 3

Showing that the characters escape the island changed the tone of Lost.

InLostseason 3 , the strange island background continues . However , the time of year finale is the true secret plan - changer . A major storyline in season 3 centers around the survivors hear to contact Desmond ’s girlfriend Penny , who could help them take to the woods . In the famous"Not Penny ’s Boat " scene , Charlie on the face of it scud these hopes before he drown . However , the episode ’s flashback is let on to be a flashforward where some of the main characters have escaped the island . This sets up a new timbre for season 4 because the audience now knows that they can not depend upon a linear narrative and that at least some of the character will make it off the island , only to potentially return .

Not every show is able to hit the ground running , but luckily these idiot box show sorted out the glaring return from their underwhelming pilot episodes .

2Star Wars: The Clone Wars Season 7

Ashoka returns and the timeline overlaps with Revenge of the Sith.

The seventh season ofStar Wars : The Clone Warsis unique for several reason . Anakin ’s apprentice Ahsokaleaves the Jedi Order after being entrap for bombing a temple inThe Clone Warsseason 6 stopping point , the series ' apparent ending . When the show was revived for another season , Ahsoka returned but did not return the Jedi Order . Ahsoka stand out in season 7 as a Jedi who has left the order but does not become a Sith . Her name has been cleared , and she is an friend to the other Jedi in time of year 7 , but she is still disenchanted with the institution itself .

Meanwhile , the timeline ofThe Clone Warsbegins to overlap withStar Wars : Revenge of the Sith . The Clone Warspreviously existed as an almost entirely separateStar Warsinstallment and season 7 brings it much closer to the springy - action movies . While season 7 has an challenging game , it is jarring to see Anakin moments before a scene inRevenge of the Sith , when his characterization is so different inThe Clone Wars .

Cassian in prison on Narkina 5 in Andor with his hands to his head.

Michael smiling to the camera in The Office

Tony Khan and Sting merged image

(Maisie-Williams-as-Arya-Stark)-from-GOT–Game-Of-Thrones-season-7–And.-(Ellen-Pompeo–as-Dr

Sybil and Tom in Downton Abbey.

Meredith lies on Derek’s chest before his death in Grey’s Anatomy.

Noah Schnapp, Caleb McLaughlin, Millie Bobby Brown, Finn Wolfhard, Sadie Sink, Charlie Heaton, and Natalia Dyer as their characters in Stranger Things season 3 standing outside hospital

A giant alien with one eye approaching a woman in The Twilight Zone

Shocked Eleanor with a Wine Glass in The Good Place

Jodie Whittaker as the Thirteenth Doctor in a Spacesuit in Doctor Who

Charlie show Desmond that his hand says Not Penny’s Boat