The Starlost/YMMV

• Special Effect Failure: Arguably some of the worst effects in a 1970s SF series. This was caused partially by an innovative motion-tracking Green Screen system invented by Douglas Trumbull for the show which failed to actually work at all, and partially by an effects budget which probably couldn't have bought a week's groceries for a 4-person family.
• Unfortunate Implications: Although there are at least 53 cultures preserved aboard the ship -- presumably selected evenly from all around the Earth -- the vast majority of people encountered are white and Western in flavor and appearance. Similarly, the "backup bridge crew" of immortal children in the episode "Children of Methuselah" has no non-white members.