The late-70s were known pretty much as the age of Apocalyptic Future. If it wasn't about old people being turned into foodstuffs, it was about Apes ruling the planet, or those escaping their age limit of turning 30...

John Ritter (Three's Company) and Harvey Korman star in this odd futuristic tale about a bankrupt US, and what they must perform to keep their country being 'repossessed' not by the Chinese, but wealthy Native Americans.

Told in narrative flashbacks, where people are now living in cars (there's an 80s song in there somewhere, oh well), a TV consultant is hired by the President (Ritter) to organize a telethon to raise the funds to save the country.

As expected things don't go according to plan as a saboteur is hired by the Arabian Nation to prevent the telethon from succeeding so they can buy out the United States from the Native Americans.

The film also includes Meatloaf long before he was hacked up in the Rocky Horror Picture Show, or was going out to capture Yetis.

Mainly this film is an interesting one to riff just for the sheer nonsense of it all and, yes, Mike, it will make you scratch your head while Bill will seriously ponder 'what the hell was that?' Not sure how Kevin would react, but hey, what's there not to like, Ritter being President, or Harvey Korman being an MC for this telethon.

Also did I mention it has Jay Leno fighting his mom in this?

Though I can't find the full film, here's the trailer:
https://www.youtube.com/watch?v=BqYoB6BLOMw