As I've seen someone else say (regarding the 3rd commercial) it was the beginning of the end. Should they have just focused on doughnuts, they would've still been decent to this day..
Yeah, no, not quite. The Fred commercials aired between 1982 and 1997. The last POSSIBLE date of copyright would be 1997, and it's not clear that any of these were made as late as that. You can't just update a copyright line and claim copyright from an arbitrary date, that's not how it works.