Captain Ron explains what Snake was doing in between New York and LA
Firefly is much further in the future than any of the Alien movies. Maybe they used FTL to reach the Firefly system, and the technology was lost in the following dark age.
Whedon himself pooped on that idea by stating that generational ships were used to inhabit the worlds of the Firefly universe.
Maybe the colonization planners didn’t want to pay Weyland-Yutani’s exorbitant licensing fees for the FTL drives?
Man, that’s one bad motherfucker…
According to that story, written by some guy, Warehouse 13 sits smack dab in the middle of a whole bunch of television and cinematic universes. 
Sooo…they spent hundreds of years traveling through space simply to reach a nearby star system because they were too cheap to spend money on the most efficient means of transport?
Hmm…interesting theory.
Beverly Hillbillies/Green Acres/Petticoat Junction.
They all orbited Sam Drucker.
2001: A Space Odyssey and the Star Wars series. One of the Discovery space pods from 2001 is visible in Watto’s junkyard in Phantom Menace.
Twin Peaks and X-Files. David Duchovny appeared as an FBI agent on both shows, albeit with different character names; it wouldn’t be difficult to come up with a storyline accounting for the name change.
I thought it was unfortunate that Breaking Bad was on a different network from Sons of Anarchy. Would have loved to hear an offhand comment from one of the Sons about “this guy out in New Mexico…meth dealer, he’s got cancer…”.
It’s been stated that the same accident that left Daredevil blind and heightened his other senses was responsible for the creation of the Teenage Mutant Ninja Turtles. As a result, almost any Marvel or DC comic is related to TMNT. With the crossovers that have happened between the two rival comic companies, that opens the universe quite a bit.
Didn’t Daryl’s brother Merle have a big old bag full of blue meth on The Walking Dead? There’s not a lot of overlap, but they could coexist. We never found out what caused the change in the first place, maybe the problem wasn’t the brown acid, it was the blue meth.
Ah, except that on Twin Peaks he had had a sex change and was now a woman (I think). Might be a little tough explaining that (unless, of course, aliens…)
I thought he was just a cross-dresser.
I’ve seen people make allusions to X-Files and Space: Above and Beyond being in the same universe (David Duchovny turns up in SAAB as well, although he plays an android in that one, and only for one episode). Both were made by the same producers, IIRC, and both had ongoing government conspiracy plots.
I wasn’t sure either (been awhile since I saw Twin Peaks!) but according to this interview from the DVDs Duchovny states the character was only a transvestite.
The Rock and Armageddon are in the same universe. The share an actor playing the same unnamed president
I like to pretend that Clint Eastwood’s character in Gran Torino is a retired Bruce Wayne who’s changed his name and gave up his money to escape his old life after faking his death at the end of The Dark Knight Rises.
Following on in the Clint Eastwood vein - It seems possible that Rowdy Yates from Rawhide aged, became bitter and transformed into the Man With No Name from ***A Fistful of Dollars ***and For a Few Dollars More.
He later died and became the vengeful spirit seen in High Plains Drifter and Pale Rider.
X-Files, Fringe, Haven, Warehouse 13, they could all be in the same universe. Hey, maybe Supernatural and Grimm too. You know, weirdness exists, and it’s being investigated all over the country. New England is particularly weird, so that’s why both the Boston area and southern Maine have issues. Lost Girl and American Gothic? Well, those are just places in North America where the law looks the other way.