You need question first, so you can assess if some answers are objectively correct.
Some "questions" really lie at the level of personal opinion. Like if you liked or not the show.
However so many peoples hides behind "opinion" in case of questions, which aren't subject of opinions.
Like, if characters from show can be called adaptation of characters in book. And because I care for them, let's call them technical questions in nature, more than for questions of opinion, there is no reason to shield yourself with opinion here.