What model TV though ?? , there aren't any 200htz nativa TV's so that's just going to be fancy picture processing which you don't want.
It'll be 100htz native max & even that's unlikely.
If its a 4k set the chances are it's limited to a 30htz signal at full res.
You can do 4gh maybe on that board which will net you 60-80fps the majority of the time.
Either way I think the 1070 is a step too far , you are not going to really get your moneys worth , a 1060 or a RX 480 would likely be better pairings.