Originally this post was about this entry, which I misread as the OP thinking Bill Murray, Dan Aykroyd and John Belushi were on Saturday Night Live in the 1980s, not the 1970s. My mistake; he just meant the 1980s was when he watched them on reruns on Nick at Nite.
My original point, which was about people who get the '70s and '80s mixed up, still stands, because I have talked to people who do that. Usually it'll be about some rock band from the early '70s, and they'll say, "Weren't they from the '80s?" and I'll correct them. Anyone who lived through the '70s and '80s like I did can't possibly get them mixed up unless they were just totally not paying attention to anything.