Im mostly using my MBA for productive stuff, so I got an early-2006 20-inch (51cm) iMac (first line-up with Intel CPUs, Core Duo) standing around, upgraded to 1.5 GB RAM. It came with 10.4 Tiger and now runs 10.5 Leopard, but I think the last OS X it can run is 10.6 Snow Leopard, but thats besides the point. Since its screen is large enough, it has a 250GB HDD and I own a 1TB NAS, I figured I could use the Mac as a (secondary) stand-alone Home Theater PC, either by running preinstalled Front Row or by installing XBMC or something similar, but I also get several DVB-C channels unencrypted in my apartment (and DVB-T over the air, of course) and recently acquired a USB DVB-T/C receiver (Delock 61959) at basically no cost. It only comes with Windows software, however, and with no OS X (incl. Elgato) or (official) Linux support *I couldnt even figure out which chipset, demodulator and tuner it uses. Nevertheless, Id like to combine these into a PVR. After some research on the net it seems nobody does it this way, people only hook up Mac Minis to their large-screen living room TV sets. I wouldnt mind removing Mac OS X altogether from the iMac or make it dual-boot into some specialised multimedia operating system. The best I could find for my needs is Linux-based yaVDR. Has anyone successfully tried installing that on a Mac? Do you have better suggestions?