That is something that doesn't ring true to me and never has.
Sheldon SHOULD like very niche SF shows/things. It makes him even more marginalized. Very similar to his "STV is much better than ST:TMP" rant from very early on. Besides the fact that the logic/writing was COMPLETELY WRONG on that(he said STV beats TMP is almost every capacity - music, SFX, set design" - sorry but wrong, wrong, WRONG, WRONG and WROOOOONNNNNNNGGGGGGG!!!), it would have made more sense to have Sheldon SUPPORTING TMP(a film Joe Sixpack hates)against, say, the more populist STIV(a film mundanes really liked back in the day).
It was just very "off".