I voted Threshold but I forgot about Shades of Gray. Hilariously I remember seeing the promo on TV years ago. It wasn't until years later that I knew about clip show episodes being a thing that I realized how bad it is.
I still might dislike Threshold more though.
Hilariously my nephew, who we are watching through Star Trek TNG with, with his girlfriend,
first saw Star Trek through Threshold. It tainted his view for years.
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Criticize all forms of bigotry, but don't enable the malicious hate mob that promotes cancel culture.
https://www.youtube.com/watch?v=qaHLd8de6nM