The DMC-SZ7K 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 camera). This Panasonic camera also supports a video resolutions of 1280 x 720 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.
This camera's video resolution (1920 x 1080 pixels) is in fact the best supported video resolution across all digital cameras of a similar age and type to the DMC-SZ7K.
The worst supported video resolution across similar types of camera is 320 x 240 pixels.