You should always watch whatever you feel like! Play games as many times as you want and then watch whatever adaptations you like afterwards.and yet I went to see Uncharted and saw something completely different from the video games. Maybe I should just watch whatever I feel like?
But if you're bored of an adaptation because you've seen it all before, then it's not really the adaptation doing anything wrong. You brought that in with you. Meanwhile if you like an adaptation because it did something new, then it's not its adapted elements that appealed to you.