I have two STB's. I ordered the Quantum upgrade. I received one box that looks like it is a replacement for ONE of the STB's and another smaller box that is for replaying the DVR's (etc). What I cannot find out from existing video's is whether I keep the second STB and ADD the smaller box to it OR do I replace the second STB with the smaller box. The Quantum package I ordered is supposed to work in both rooms. Thanks!! (I am a pretty technical sort, but cannot figure this out!)