The Lumix DMC-TZ56 supports a maximum video resolution of 1920 x 1080 pixels. That's over six times the video resolution of the most frequently found video resolutions of 640 x 480 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 in fact the best supported video resolution amongst all digital cameras of a comparable spec and age to this digital camera.
A 320 x 120 pixels video resolutions is the worst supported video resolution amongst similar types of digital camera.