Can GBPVR control 3 or more STBs? If so, how?

[Vgonman]

I have an XP Pro PC with 2 Hauppauge PVR500s and one Hauppauge PVR 150 (total of 5 analog tuners/inputs). Currently, one of the 500s and the 150 are active (couldn't get GBPVR to correctly tune the the second 500, but that's a different issue). I don't have any STBs currently connected. I just have the incoming analog cable feed attached directly to the PVR cards.
In preparation for next February's analog cut off, I want to get my system set up so I can record off of at least 3 (preferably 5) STBs connected via RCA cables to the PC. I realize I will need a blaster for each STB, but my main issue is how do I control 3+ blasters independently? Also, how would they connect to the PC?

[ple]

search for one of my old posts on the subject. usb-uirt can independently control 3 blasters, though you will have to isolate the one on the usb-uirt itself.

[Vgonman]

Thanks, I'll look into that