05-19-2012 06:16 PM
05-21-2012 08:21 AM
Google "Addressable IR" and you'll find some products from Xantech and others. I'm not sure how well such devices work with harmony. You may need an addressable RF remote like URC. The best solution is to buy different tv brands and use satellite instead of cable since those devices all respond to different codes. But it's too late for you to do that now.