re: Official Last of us 6-14-13(UPDATED with reviews&GB insight) POSSIBLE SPOILERS

I have a question about Last of Us multiplayer. I copied and pasted this question from the other Last of Us discussion thread because I didn't see this thread until after I submitted it, so sorry in advance for the repeat.

I still haven't activated my MP online pass for this game. I have an older PS3 system in my living room, and a newer system in my bedroom (which is the system that I played SP on). Can I only activate that online pass on only one system or the other? I'm thinking so, and that is why I haven't yet activated it. I don't know if I prefer playing MP in the bedroom while the wife (no pics) sleeps, or living room (where I can use bluetooth headset to chat without waking the family up). If the pass is tethered to my PSN ID, then I imagine it should work on both systems. Does anyone know how that works?