The LC-60UD20 supports a 2160p video mode which is better than most TVs of a comparable type and age to it. Most televisions of a comparable age and type to it support a 1080p video mode. In addition, this TV support a 1080i and 720p video mode.
A 2160p video mode is in fact the best supported video mode amongst all comparable spec TVs that were launched more than two years ago.
The worst supported video mode across similar types of television is 480p.