Boo Berry is a ghost mascot for General Mill's blue-berry flavored Monster cereal of the same name, that was first launched in 1973. He often gets into fights with Frankenberry and Count Chocula on whoever's cereal is better and sometimes scares them off.
Copyright Status[]
The original 1971 commercial for Count Chocula and Frankenberry as well as the later commercials of Boo Berry and Fruit Brute were published without copyright notices, Making them public domain when they first aired. Which were required for pre-recorded programs on TV (including commercials) until at least 1981 when notices were no longer required for commercials and pre-recorded media to gain protection and were only required on the master tapes. The original cereal boxes also contained no notices and are considered the first published appearance of the characters since they are considered printed material.
"Count Chocula", "Boo Berry", "Fruit Brute", and "Frankenberry" are trademarked still by General Mills. Fruity Yummy Mummy is still under copyright due to the commercial even with no notice not requiring any copyright for protection past 1981. Carmella Creeper, a character created much later in 2023 is also still under copyright.
See Also[]
https://archive.org/details/gicl-0862-monsters-cereal-boo-1-1-1972 (The Commercial with no notice, the one minute version thought to have been lost for years.)