The Underdog Show -"Simon Says - No Thanksgiving"

While planning to take over the city Simon Barsinister must cross Main street to pushed the buttons but is prevented from crossing because of the Thanksgiving Parade

Underdog, also known as The Underdog Show, is an American Saturday morning animated television series that ran from October 3, 1964, to March 4, 1967, starting on the NBC network until 1966, with the rest of the run on CBS, under the primary sponsorship of General Mills.