We won’t debate that bigger is better, just be sure to consider your available space and an appropriate viewing distance before you decide. As a general rule, the best size TV for gaming is one that allows you to sit a comfortable distance from the screen. The industry standard is about double the screen size, which means that if you have a 50-inch screen , you’d sit 100 inches away.
For watching movies a little distance can be increased, and as a rule it is more convenient to watch movies from a distance of 2.5 times the size of the screen.