The Nikon D800E supports a maximum video resolution of 1920 x 1080 pixels. That's over two times the video resolution of the most frequently found video resolution of 1280 x 720 pixels (which is also supported by this digital camera). A video resolution of 1920 x 1080 pixels is equivalent to Full HD video. You will require a Full HD TV or better to appreciate this level of detail.
This digital camera's video resolution (1920 x 1080 pixels) is actually the best supported video resolution across all SLR cameras that have been on the market for more than two years.
A 320 x 240 pixels video resolution is the worst supported video resolution across similar types of digital camera.