I'm using an HDTV USB tuner: http://www.pinnaclesys.com/PublicSi...ers/PCTV+Mac/Pinnacle+TV+for+Mac+HD+Stick.htm with the mac pro in my sig. I'm getting good quality HDTV, except it's intermittently choppy video & audio with HD shows, and HD shows only. SD tv is fine, but I got this tuner specifically for recording HD shows. It can't be lack of processing power or RAM, because come on, my computer is very well endowed in those respects. Could it be the EyeTV Lite software? If so, is there another program that you would recommend that I could use with this tuner? I'm using an antenna, and I only have Safari, iTunes, and iChat open. I appreciate any help!