I think that nostalgia exceptions is the right way to talk about these things. I have those with books, too.

It makes rating things on Netflix difficult because I can't tell if I would actually love a show if I saw it now or if it's all nostalgia. I remember loving Remington Steele, but when I watched the first DVD, it didn't work nearly as well for me. Too much embarrassment. I enjoyed it. I just didn't enjoy it as much as I expected to, and I doubt I could watch it without company.