I am not clear on what would need to be done to sync the audio and video source if you have an external unit, but I must agree - a unit that takes in all video sources and sends out a component signal to the TV would be great. I was reading the specs of ATI's latest AIW product and they are using the graphics chip to 'clean up' the cable signal coming in. I'm not sure if the 'audio purists' would object to that or not, but it seems to a novice that it would make a welcome addition. I think for normal analog TV signals some processing could make a very visible difference.