When Rocky and Bullwinkle bring the Kirward Derby to a "responsible government agency", they are turned away by an after-hours guard. During the exchange, the guard's physical appearance drastically changes mid-scene. All of a sudden, the guard has larger glasses and a differently-shaped head (and a generally friendlier expression), as well as the addition of a shoulder strap to his uniform.
At the end of the first "Rocky & Bullwinkle" installment, the narrator reads the next-episode title as "All in Fever Say Aye", but the title appears on-screen as "All in Favor Say Aye".