I like the real old TV shows, from the early 50's through the mid 60's. Most are not really "cult", though.

The new reissue of Plan 9 From Outer Space, in color for the first time, with commentary by Mike Nelson was recently released. I have in on a VHS tape in B&W, and plan on getting the colorized DVD version. The same company reissued Reefer Madness a couple of years ago, colorized, also with Mike Nelson and other commentators on a separate audio channel that can be switched on or off. This DVD is the best one to get. This stuff is definitely cult, and I've seen Reefer Madness on a big screen when NORML unearthed it many years ago. It first came out in the late 1930's.