Count Chocula was one of five monster-themed cereals manufactured by the company. The most popular one, after Count Chocula, was the strawberry-flavored Franken Berry, followed by the blueberry-flavored Boo Berry. I never cared for those berry-flavored cereals, but I seem to remember my sister sometimes ate Franken Berry. Two more fruit-flavored cereals were introduced later - Yummy Mummy and Fruit Brute (immortalized in Quentin Tarantino's Pulp Fiction), but I don't recall those being sold in my area, and in any case, they didn't last long. Count Chocula, Franken Berry and Boo Berry were manufactured for decades, but in recent years, those three products have only had limited distribution, and only during the month of October.
Anyway, I recently stumbled across this half-hour video compilation of vintage monster cereal television commercials. Man, these really bring back memories! I had just about every single toy/premium shown in the video! I don't know who voiced these characters, but the Boris Karloff and Peter Lorre impressions (for Franken and Boo, respectively) in the early spots are terrific!