this is a tutorial i made a few days ago on how to control the aperture and gain on the HV20. i had been up for about 20 hours so you can tell I'm a little muddled and tired. so if someone else want to make a better one that's more clear, please do so
this is the PAL version, so it's basically exactly the same but the NTSC version would have different shutter speeds.
you need a miniSD card in your camera for this to work.
mirror - http://www.megaupload.com/?d=JNDHJMN5
i prefer to use cine mode because you get the extra shutter speeds if you need them. you get 25, 29, 33 ,40 and 50 where as you only get 25 and 50 in TV mode.