The highest video resolution supported by the Sony DSC-TX66/V is 1920 x 1080 pixels. That's over six times the video resolution of a 640 x 480 pixels digital camera, which is the most frequently found video resolution supported by digital cameras of this age and spec. 640 x 480 pixels is also supported by this camera. In addition, this digital camera support a video resolutions 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 resolutions is in fact the best supported video resolution amongst all high megapixel cameras that have been on the market for a similar time to this camera.
Amongst similar types of camera the worst supported video resolution is 320 x 240 pixels.
What does "video resolutions" mean?