I saw…something…on TV, twice, in the time frame appx 1980-1985. If I am not mistaken, it was a sketch comedy special, not a regular show. I am pretty sure it was not an SNL special.
Two of the skits I remember were one about a guy taming the big cats, and they were actually Cats (bulldozers and loaders, and he could command them to raise and lower blades, etc.). The second skit had a debate between Moon Zappa (in full Val-speak mode) and G. Gordon Liddy.
I’ve checked IMBD and neither of them seem to be in anything familiar from about that time. So, maybe their ‘appearances’ were made by SNL-like players and not the real persons.