Season 8 marked the final production cycle of Family Guy to be broadcast entirely in standard definition (4:3 aspect ratio). While the spin-off series The Cleveland Show launched in high definition in the fall of 2009, the parent show did not permanently transition to widescreen 16:9 HD until the premiere of Season 9.

The episode "Extra Large Medium" drew heavy criticism, notably from former Alaska Governor Sarah Palin, due to a character with Down syndrome who states her mother is the former governor of Alaska. Furthermore, the episode "Partial Terms of Endearment"—which centered on Lois acting as a surrogate mother and navigating the decision of abortion—was outright banned from airing on Fox by network executives. It was only made available via home media releases, adding to the mystique of the "complete" season. Key Character Evolutions

" (S8, E20): A full-length parody of Star Wars: Episode V – The Empire Strikes Back , following the success of the previous "Blue Harvest" special. Partial Terms of Endearment

– Lois discovers her mother is a Holocaust survivor, prompting Peter to adopt Judaism.