Hello ALL, I JUST upgraded my old RCA Directv reciver to HD Receiver,,and got another basic receiver for another room... Anyways, The new receivers do NOT have a Serial Port on them, so I am forced to use an IR Blaster.. I have to cover up the Remote control window on Directv receiver,,and then PROGRAM a IR Blaster CODE into my machine, so the Replay DVR unit will control the Directv unit..change channels, etc... Does anyone know the IR Blaster code/s? Directv Tech help could NOT help me... Anyone have any ideas? or similar problem? I'm really bummed, if I cant get this to work. My Replaytv unit is old..model RTV - 2020....and the HD receiver is model H23 - 600C, and reg receiver is D12MP - 500...if that helps... heard something about a usb port ..will that work?