The highest video resolution supported by the Lumix DMC-TZ58 is 1920 x 1080 pixels. That's over two times the video resolution of a 1280 x 720 pixels camera, which is the most frequently found video resolution supported by cameras of this spec and age. 1280 x 720 pixels is also supported by this camera. In addition, this Panasonic camera supports a video resolution of 640 x 480 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 amongst all digital cameras of a similar type and age to the Lumix DMC-TZ58.
The worst supported video resolution across comparable types of camera is 640 x 480 pixels.