Was HR Pufnstuf was in an episode of CHiPs?

No, HR Pufnstuf was not in an episode of CHiPs.

HR Pufnstuf was a children's television show that aired from 1969 to 1971. CHiPs was a police drama that aired from 1977 to 1983. They were on television at different times and there is no record of any crossover or appearance.