The FOX Graveyard

One show I can think of that did make its way out of this graveyard was Family Guy, mainly because a lot of people liked the show and were pissed that Fox canceled it, and it managed to come back thanks to Adult Swim rerunning it in 2003 when they started to rerun Fox shows and DVD Sales of the show also managed to succeed as well.

Firefly was another show that got a following before and after cancellation, and people to this day still want it back. I'd say it was one of the most unfair cancellations that ended up in the graveyard. Basically, the 2000s equivalent of NBC canceling the Original Star Trek, the difference is that while Star Trek managed to come back multiple times through a continuation as a cartoon in the early 70s, movies, a couple of sequel series that followed, and so much more, Firefly had a movie called Serenity, 3 years after the series was canceled, and it bombed in the box office. The Firefly/Serenity franchises must've had shit luck over these years.

All these other shows besides The Critic (yes I know it originally aired on ABC, just had a second season on Fox and only had a Flash reboot in 2001, still counts as a show Fox canceled), and Firefly. A lot of those shows became joke material for The Simpsons and Family Guy, shows that were able to sustain much longer than the other shows that came and went. The Simpsons especially knowing how it lasted almost as long as the network it's on. So of course The Simpsons writers must've seen how many shows came and went on the same network as them, Family Guy too despite the show being 10 years newer.

The Simpsons literally had jokes involving other canceled Fox shows many times:

Troy McClure: "Hello, I'm Troy McClure. You may remember me from such Fox Network specials as Alien Nose Job and Five Fabulous Weeks of The Chevy Chase Show."

This was from the beginning of The Simpsons 138th Episode Spectacular.

Family Guy literally namedropped all of the shows that got canceled when the show returned back in 2005 with the episode North by North Quahog.

Peter: "Well, unfortunately, Lois, there's just no more room on the schedule. We've just got to accept the fact that Fox has to make room for terrific shows, like Dark Angel, Titus, Undeclared, Action, That '80s Show, Wonderfalls, Fastlane, Andy Richter Controls the Universe, Skin, Girls Club, Cracking Up, The Pitts, Firefly, Get Real, FreakyLinks, Wanda at Large, Costello, The Lone Gunmen, A Minute with Stan Hooper, Normal Ohio, Pasadena, Harsh Realm, Keen Eddie, The $treet, American Embassy, Cedric the Entertainer, The Tick, Luis and Greg the Bunny."

Lois: "Is there no hope?"

Peter: "Well, I suppose if all those shows go down the tubes, we might have a shot."

(fun fact, that Family Guy joke helped me out with the image above)

Another example of Family Guy bringing up Fox's canceled shows was through a joke where Brian was indirectly namedropping shows Fox aired before bringing up Son of Zorn. The Simpsons did something similar where they put some of the shows like Babes, House of Buggin', Drexell's Class, The Critic, and Futurama to name a few in a song at the end of it's 600th episode which also happened to be it's 27th Treehouse of Horror. Futurama was another canceled show that was on Fox (in it's original run) and it managed to come back thrice (second run on Comedy Central, and third time on Hulu), it had 5 seasons so that's why it isn't on here, plus Comedy Central dug out its grave. 

Plus, most of those shows were ones I added myself because I remember them airing and then getting canceled. Examples included are Allen Gregory, The Animated Napoleon Dynamite, Animation Domination High-Def, Son of Zorn, The Mick, LA to Vegas, Bless the Harts, Duncanville, and HouseBroken. Honestly, for some of those shows, I saw their cancellation coming, even if they weren't deserved.