The screen size is measured in inches (in). It's measured diagonally from corner to corner on the screen. Please note that the effective viewing area is important (excluding the frame).
The number of pixels horizontally and vertically defines a TV's resolution in pixels or dots per inch (ppi or dpi). The greater the resolution, the more information or image you'll be able to view at once.
Response time is measured in milli-seconds (ms) and represents the time it takes for one pixel to go from active (black) to inactive (white) and back again. Needed to adapt to the constantly changing image on the screen. The lower, the better.
Number USB ports
Number HDMI inputs
Digital tuner type
DVB-C (digital cable tv), DVB-T (terrestrial digital TV)