Uh, I thought we were talking about a media center box that could record two ATSC streams and play back a third, which is what the original post asked for. I only pointed out that you don't need much horsepower to do that.We are talking about a Mac here, not a Slingbox.
I also ALREADY pointed out that you need more horsepower to do transcoding. Please stop trying to argue with me by setting up a point that I have already made and positioning it such that it appears to refute my other valid points.
I disagree that multi-core CPU's will make it into lots of consumer electronics (which is how you defined the market earlier). Sure, there will be high-end Home Theater PC's (Macs included), but most people will be happy playing HD-DVD, Blu-ray, and ATSC HD content that can be decoded quite well with an IC. Very few will be transcoding that content.
Quad-core CPU's will make it into lots of content CREATION applications where that power is desperately needed.