I'm thinking of switching from my current cable provider to a cheaper iptv box (possibly with a pvr attached). However I want to know if my potential hardware choices are supported by my Slingbox 500 (specifically the virtual remote). I've tried searching through the providers on the settings under newwatch.slingbox.com, but it's a little cumbersome to do this for each manufacturer and model I'm researching. Is there a place that lists all supported input devices? I've tried searching but can't seem to find a comprehensive list anywhere.