DePatie-Freleng produced 13 episodes of the animated series Return to the Planet of the Apes and they aired on NBC in 1975 and ’76. The animation was quite limited and there was a distinct lack of Roddy McDowall and Kim Hunter, but hey, it was more Planet of the Apes, so we watched and vaguely enjoyed.
Here’s the intro. Hit the IMDb link below for full episodes if your ape interest is piqued.
Return to the Planet of the Apes Wiki,
Watch full episodes at IMDB.