A:Answer Well, a basic internet search will answer that question for you.
For what it's worth:
$100 TV - 1280x720 resolution, 60Hz refresh rate, 5ms pixel response time, HDMI only, no sync options, TN panel
$500 ViewSonic Gaming Monitor - 2560x1440 resolution, 165Hz refresh rate, 0.5ms pixel response time, Display Port, G-sync, IPS panel
The $100 TV will give you screen tearing, blurry images, difficult to read text, and probably a headache with prolonged use attached to your PC. At least spend $150-$200 on a "cheaper" 1080p (1920x1080) monitor if you don't want an expensive gaming one.