The highest video resolution supported by the Lumix DMC-TZ55 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 comparable spec cameras that came out around the same time as the Lumix DMC-TZ55. 640 x 480 pixels is also supported by this camera. In addition, this digital camera support a video resolution of 1280 x 720 pixels and 1920 x 960 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 digital camera's video resolution (1920 x 1080 pixels) is actually the best supported video resolution amongst all compact camera digital cameras that are a comparable age to the Lumix DMC-TZ55.
Amongst similar types of digital camera the worst supported video resolution is 320 x 240 pixels.