First of all, Jobs is too granola for Zwarte Piet. He'd redesign him as an alibino pacifist!
2nd of all, a Tivo like device for Mac would surely entail either $ for the privelege of watching shows or forced commericials because they are too respectful of DRM. (Anyone remember MacOSRumors.com's (or was it another rumors site?) repeated articles in the late 90's on convergence with quicktime streaming? It's getting closer. The line between xbox and windows is getting thinner and thinner.)
3rd I love my directv tivo. Wouldn't give it up for anything. 2 tuners, a zillion channels, easily upgraded HD. It does exactly what it says simply and right every time. Even my wife can use it without problems. I paid $50 after rebate and $5 a month for the service. How much would Apple charge?
4th all I want from Steve Jobs is a rom-less, hardware-free MacOSX for Intel. I want to build my own box from Tigerdirect. Everything else at Macworld will be smoke and mirrors until that day comes.