Just found a more complete season premiere summary for “Road to the Multiverse”, airing September 27:
With the help of an out-of-this-world remote control, Stewie and Brian travel through alternate universes, including a post-apocalyptic world, a parallel world run by dogs where humans are pets and a “Robot Chicken”-like existence, in “Road to the Multiverse,” the season premiere episode of FAMILY GUY airing Sunday, Sept. 27 (9:00-9:30 PM ET/PT) on FOX. (FG-706) (TV-14 D, L, S, V)
image copyright Fox Broadcasting