that doesn't really help me - I have an HDMI-only home setup - multiple HDMI sources switched by the AV receiver drive a single TV, I'd have to somehow create a parallel composite switch from all the video sources - Bunnie Huang's NeTV can almost do this (and with a nod and a wink one could hack the fpga to do it) so the technology is available to an enterprising hacker - whether you can make a commercial product that does this without licensing HDMI (or licensing and still making it open source) and without getting sued is debatable