I was simply remembering the end of the first movie where Doc drops a beer can, a banana peel and so on into the Mr. Fusion so he can take Marty and his girlfri

I was simply remembering the end of the first movie where Doc drops a beer can, a banana peel and so on into the Mr. Fusion so he can take Marty and his girlfriend into the future and joking when Doc ended up in 198-whatever Mr. Fusion would refuse to work because it was out of support. I think you're interleaving the timelines of later movies?