Some people are pretty excited about the coming mashup (Courtesy of Fox)

“The Simpsons” is an animated family sitcom with a dedicated fan base that has aired on Fox for 25 seasons. “Family Guy” is an animated family sitcom with a dedicated fan base that has aired on Fox for 12 seasons.

At a certain point in time, a crossover episode became a statistical inevitability. On Sept. 28, that eventuality will be realized when Fox airs an episode where the Griffin family (of “Family Guy”) visits Springfield (home of the Simpsons).

This past weekend at Comic-Con, a five-minute teaser for the episode was released:

In the video, we can see the obvious character matches: Homer and Peter drinking beers and eating donuts. Bart and Stewie engaging in pranks. There are also cameos from other titans of the current animated realm: “Bob’s Burgers” and “The Cleveland Show.”

Crossover episodes are a longtime staple in the animated space. Way back in 1995, “The Simpsons” had a crossover episode that included the character Jay from the short-lived Fox animated show “The Critic.” Trey Parker and Matt Stone once penned a “South Park” episode entitled “The Simpsons Already Did It,” which paid homage while kvetching about the ubiquity of their animated contemporaries.

And, of course, Hanna Barbara may very well have created the mold with a 1987 Jetsons-Flintstones crossover: