I don’t mean stuff that was obviously bad on sight (to you) and so you didn’t bother with, or even necessarily content you just checked out of before the first episode was done. But a series that you ultimately felt wasted your time and abandoned due to its total lack of quality.
Supernatural and Smallville were… too long. I can’t even remember where I dropped them, but it was way too far in already.
I do have a hotter take:
NATLA (Netflix Avatar, the last Airbender) is fine. It’s not bad! It’s like an AU with scenes we never got to see.
I see some people rage that they suffered through the whole season, and don’t get the fuss.