I am using the TV Hybrid on a Dual processor Power Mac with 4 gB of RAM and an Apple 17" LCD Studio display. The picture is somewhat blurred and/or stutters during action sequences such as basketball games. The sound is just slightly out of synch with the picture , as well, which is a bit annoying. I downloaded the latest EyeTV 3 software and now can no longer receive the over-the-air digital ASTC stations. Reverting to EyeTV 2.5.2 allows the stations to be received again. Support is available but only via email and takes several days to get a response which has, so far, not resolved my issues. At this point I would consider the TV Hybrid as an emergency back-up.