Just what it says.

I have my modem next to my PS in my basement so I can stay hardwired to it.  I just bought my wife a directv cinema kit to connect my DVR to the modem wireless so she can watch whatever she wants. (hoping more game time for daddy haaaa).  From what I have read it seems like the cinema kit stays connected to the wifi all of the time so it can update and download whatever it needs to. 

I am just wondering if this is going to screw my connection up while I am playing or if my PS (being hardwired open NAT etc.) will take priority and use what it needs first before sharing with the other devices.  She also has a kindle which as of now hasnt hurt me but if she gets on the lap top while I am on the PS it really sucks and my game lags like a mother effer.  I know the myth is that dumbing down your connectionn helps but for me it really sucks and puts me behind everyone. 

Anyway thanks for the info fellers.

And no I cant afford a seperate internet connection for my PS.  Wish I could but meh.