The DSC-HX10 supports a maximum video resolution of 1920 x 1080 pixels. That's over six times the video resolution of the most frequently found video resolution of 640 x 480 pixels (which is also supported by this Sony camera). In addition, this camera support a video resolution of 1280 x 720 pixels and 1440 x 1080 pixels. 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.
A 1920 x 1080 pixels video resolution is in fact the best supported video resolution across all digital cameras that came out more than two years ago.
Across similar types of camera the worst supported video resolution is 320 x 240 pixels.