Oddly enough for me it is the big long period epics. Whenever I'm having a bad week I know I can just put on Ben Hur or The Ten Commandments and I know I will feel better. I just got the nicely remastered edition of Lawrence of Arabia for my birthday, and since my brother-in-law is manager at a movie theater I'm trying to see if we can arrange a private screening of it. I had a copy of it before, but it was just a cheap dvd I had picked up at the grocery store or something that didn't look very nice and had no extras.
I'm also the same way with the high-production tv miniseries that you don't seem to see any more. At least once a year I'll sit down and watch The 10th Kingdom, or Franco Zefirelli's Jesus of Nazareth, or one of those Hallmark produced ones based on a classic book. Actually, now that I think about it, that might explain why regular networks don't seem to have as many miniseries anymore. I remember Hallmark produced a bunch of them for NBC in the 90s, and I guess they were popular enough that they decided to launch their own network. Although I don't see much about that anymore so I don't know what became of it.