Hello. I am new to FIOS TV, but not new to Verizon. 
I have 1 7232 Multiroom DVR and 5 HD STB's, all with IMG 1.9.
Before bed each night, we let our 3 kids watch a show. We usually try to do this as a family, but sometimes we will let them watch in their bedrooms. We can only stream 2 recorded shows at once and this is a problem, as they all usually want to watch something different.
So my question is this: If I replace one of the HD STB's with a 2nd DVR, will this allow me to watch 3 or 4 recorded shows at once? The Tech that I spoke with said no, because the network can only handle 2 Streams. (I personally think he's full of you know what) Also, will each of the DVR's be able to communicate with one another and will all of the other STB's be able to access either DVR?
Thanks in advance!
cpapjack