When does Peter Potamus return?

Peter Potamus is a purple animated hippopotamus that first appeared in the 1964–1966 animated television series The Peter Potams Show. Peter Potamam was a companion series to The Magilla Gorilla Show. The Ideal Toy Company was the sponsor of the television series, and during the original run of the cartoon, the closing song ended with the phrase: "And there he goes Peter Potamas, our ideal".