Samer1970 :
TVs have very bad input LAG ... they are not suitable for shooters.
Most TVs have a GAME MODE, with minimal latency. No reason they should be any worse than flat screen computer monitors.
Of course, if you want to be
absolutely sure your monitor is introducing no latency, then get an old analog CRT. Those light up the pixels as the signal arrives. I'd settle for a good GSync flat screen, but I'm just sayin'.