[[WMG: The inconsistencies in the timeline are because the show is the memories of the characters.]]
The gang from the show did a LOT of toking back in the 70s. It could very well be that what we see on the show are the memories of the characters in modern day trying to remember their experiences as teenagers in the 1970s--except that they fail in many respects due to their hazy memories.

Under this "hazy memories" umbrella:
* [=T7S=] had eight Christmases from 1976 to 1979. The plot of each could have happened around the same time as each other, or some not at all.
* The gang went skinny dipping and [[GoneSwimmingClothesStolen had their clothes stolen]], and all rode home naked together in the Vista Cruiser; yet in a later episode Kelso makes a big deal about never having seen Donna topless.
* Jackie's mother is played by Eve Plumb in a Season 1 episode, then [[TheOtherDarrin is replaced with Brooke Shields]] in later episodes. This could be because the characters (particularly the guys) didn't notice her or her perceived hotness until she started dating Bob.
** Ditto with Laurie, who was also [[TheOtherDarrin Other Darrin-ed]] before [[ChuckCunninghamSyndrome departing]].
* There are various birthday and age inconsistencies.
* The characters go to see ''StarWars'' midway through the first season (late 1976) even though it didn't premier until May 1977.
* The overall timeline of the 70s isn't adhered to with any major structure, aside from the final episode. It's all a blur to these guys!
* Also, didn't Donna [[BrotherChuck used to have a sister?]]

[[WMG: Season 8 was one big middle finger from the writing staff to the show's renewal.]]

* Think about it: Season 7 was originally meant to be the end. It was planned out in such a way to end the series on a positive/bittersweet note wih Eric leaving for Africa. Everything was planned out... and then it was confirmed that the series was picked up for another season. The writing staff, after working on the show for 8 years, would be pretty pissed off that their "grand ending" was now a season finale, right? So, in retaliation, they decided to take this last season and structure it in such a way that ''pisses off enough fans to question WHY the show was renewed''. ...[[spoiler: If you question this, go ahead; I've been awake for 24 hours and was just rambling here.]]
** The start of darkness for the writing staff begins right at the end of the season 7 finale. Once told that the show is continuing, the writers rewrite the script and come up with an intentionally horrible hook for the following season: they break up [[FanPreferredCouple Hyde and Jackie]].
** And then, learning that Ashton Kutcher forgot to renew his contract, came up with [[TheScrappy an annoying replacement]] for him and Eric, further twisting the knife: '''Randy'''
** Or...

[[WMG: The whole show was just a purgatory for each character, where they [[EveryoneIsJesusInPurgatory tie up their unresolved conflicts in season 8.]]]]
The gang had been living pretty comfortably for 7 seasons, a status quo became established. Them BAM, season 8 shakes everything up. The cast face scenarios that entirely clash with what they identified themselves with, for 7 past seasons. Kelso finally has to finally grow up and accept responsibility, with his job and daughter etc. Hyde found himself slipping into a systematic routine of normality of having a wife. Eric had to face up to the realization that he couldn't hide away from life in his parent's basement forever, and begun experiences in Africa. Jackie found herself attracted to an ethnic minority, conflicting with her family's traditional conservative values. Donna found herself technically cheating, and thus displaying the same characteristics she would criticize a man for under Feminist doctrine. Fez I'm still struggling with, but I'm presuming Randy was an aspect of Fez' unresolved conflict that he was no longer the new stranger, and that Randy was achieving more than Fez did even as an obscure newbie. They all become changed people as a result of certain realizations, and when the clock hit midnight on new years' eve, and the 80s started, the gang all ascended to heaven. Season 8 might be a poor season from the fandom's perspective of what they're comfortable with, and certain aspects of it may have been painful to watch, but the purpose behind it could be [[FridgeBrilliance the greatest thing That 70s Show has ever done]].
* That's probably the reason the timeline was cursed with inconsistencies (like 8 christmases in only 4 years). The 70s era was going to continue on forever, and ever, until the gang resolved their conflicts.
* Maybe the first few seasons were real, then the watertower killed them, and they just sorta lived out the remaining seasons in their mind, when they were dead or in a coma. It explains how others seem to be killed by it, but they never do, because they're already dead.
* This works especially well if we see it through a Buddhist mythology (as opposed to Christian). The characters are stuck between 76-79 in a endless loop of time until they can relinquish their desire and achieve nirvana, or the end of existence. Kelso gives up his desire and submits to adult responsibility and is removed from the show. Eric relinquishes his sloth and cowardliness by deciding to teach in Africa and is removed from the show. And his archetype is reincarnated as randy, who will be next in this eternal play to play the role of Eric. This is similar to the reincarnations of Midge and Laurie which is show through the different actors. Since Eric was still needed to end Donnas reincarnation, It was necessary to change the reincarnations name to Randy, although he would fill the role as the Eric archetype. Eric later returns to the show so that Donna can free her self from will through him, and once all the characters have given up their desires the series ends, but life will continue with the next set of actors as the reincarnation of these characters.
** Which also explains why the geography is different, the world will adapt to the needs of the characters, such as changing the geography of the world, or any other anachronisms or oddities.
** Another way to say this is; they are hanging out down the street, cursed to do the same old thing they did last week, with out a thing to do but talk to each other again and again and again until they're all alright. Adding an ominous undertone to the opening song.

[[WMG: Donna's younger sister, Tina had an active social life that kept her away from the house a lot.]]
And when Midge left, Tina went to live with her. Hey, it sure as hell beats her just [[ChuckCunninghamSyndrome vanishing from existance after 1 episode]]. As for Valerie (Donna's older sister who was in college and was mentioned once) she just never visited.

[[WMG: Donna got slut rabies.]]
* Ok here me out. In the episode called "Cat Fight Club": Donna tried to break a catfight between Laurie and Jackie and got bit by Laurie. She makes a remark after that she hope she didn't get slut rabies. In that episode her hair was red. In the later seasons her hair became blonde. Coincidence or BrickJoke?
** Coincidence; she dyed her hair blonde. ...although, considering how she acted during Season 8...

[[WMG: Sometime in the next couple of years, there's gonna be a show similar to this one about life in TheNineties.]]
* HappyDays was a show made in TheSeventies that was set in TheFifties. ThatSeventiesShow was a show made in TheNineties that was set in TheSeventies. It only makes sense, doesn't it?
* I think it'd be great if it was a sequel with the cast's children.

[[WMG: The final season's change in cast and shift in focus occured because it's like every other show in the 70s.]]
I always thought the show kept on running even into its final season with the changes in casts and shifts in focus because like any other show in the 70s it would actually do that.

[[WMG: Fez is really from somewhere ordinary but is really exaggerating]]
Like Panama. Or Cuba. Or Curacao. He's just making up the stuff he says because he's embarrassed. And anyway it's part of his personality to be enigmatic.
* I think Fez is Venezuelan (like his actor) but he keeps it a secret and makes things up about his homeland to make himself seem more interesting to his friends.

[[WMG: The country Fez is from, isn't one that is real in real life]]
It's a fictional show. Nothing says that the country HAS to even be one that's real. It's a fictional location, nothing more.

[[WMG: Fez is a child of (what we think is his) his host families extramarital affair]]
We know little about his host family except for they are extremely religious.They are shown to be over-zealous even freakishly devout- the kind of religious people that take all of Fez's money and kick him out with just a bible. Fez seems confused about his background and can never tell a consistant story about where he's from or divulge almost any details about his life before moving to point place. It would be very possible that the religious couple he thought was his host family is so ashamed they lie to him about his origins and then are relieved to get rid of him once he is old enough for them to no longer be held liable for him. Fez may know that, which would explain why he never says where they are from, and is happy to be the butt of jokes if it means he doesn't have to face the shame of being an unwanted child.
* Fez's insane sex drive is a manifestation of his looking for approval from anyone since he doesn't get it at home.
[[WMG: Fez's host parents were missionaries in his nation]]
Would work with their characters, and it makes sense that they'd want to take someone in temporarily, to send him back in hopes he would become a preacher, kinda backfired though...

[[WMG: Steven Hyde is bipolar.]]
The clues are in his name: Steven Hyde. ''The Strange Case of Dr. Jekyll and Mr. Hyde'' was written by Robert Louis Stevenson.

[[WMG: "Halloween" was all Hyde's dream.]]
At the end of this episode, Hyde wakes up from a nightmare. Who is to say that everything in that episode up until he woke up wasn't a dream? This would mean that there were ''not'' two Halloween episodes that took place in 1977. (The other episode was "Too Old to Trick or Treat, Too Young to Die.")