If you find yourself running out of HDMI inputs, or want to send the signal from one source to multiple TVs, you'll need either a switch or a splitter. Also called switchers or distribution amplifiers ...
Is there anywhere I can get (since no local place has this) a Y-cable for a CDA cable? I have 2 CD drives and I'd like both to be able to play CD audio. Or is there a soundcard out there with two CDA ...