: This season was notable for its heavy use of celebrity guest stars, including Snoop Dogg and Sarah Michelle Gellar. Expansion and Milestones: Seasons 4–6
: Season 6 flipped the opening sequence, with the Robot Chicken turning the mad scientist into a cyborg—a thematic shift that mirrored the show's maturity. Technological Advancement robot chicken season 1 2 3 4 5 6 7 8 threesixtyp best