The chirping is definitely nowhere near the TV setup. It's DirecTV so I don't know if that matters. I think it's coming from either one of the two in the hallway, the master bedroom, or the one we haven't put on the wall yet. I've been carrying that one around most of the day. haha
That is certainly the most logical, but batteries have recently become sacred in this house with the new addition of RDRII (controller batteries) and all the crap kiddo is going to need AA's for next month. It's kind of funny how intermittent the chirp is for now..