The HM-TA20 supports a higher video resolution than most video cameras of this spec and age. This Panasonic video camera supports a 640 x 480 pixels video resolution, whereas most video cameras that are a similar age to it support a 1920 x 1080 pixels video resolution. This video camera also supports a video resolution of 1280 x 720 pixels.
A 640 x 480 pixels video resolution is actually the worst supported video resolution amongst all medium sensor size video cameras that are a comparable age to the HM-TA20.
Amongst similar types of video camera the best supported video resolution is 1920 x 1080 pixels.