It depends on your expectation.
PC monitors have better image quality and faster respond from my opinion.
TV is not bad and yes you can use it for games.
I choose not to use my TV for PC games, I prefer an IPS image quality with higher resolution or a quick TN panel than a TV.
I use my pc monitor also to watch movies, if I am alone.
I use my TV only if I want to watch movies with my friend (not alone), I do not have extra blue-ray player or media player. I rely fully on my PC to do them all.