Welcome and congrats on finding your perfect floor plan. We have the same and love it.
Ours came with a 32" LCD in the living room, on an extendable arm. I believe I measured and a 37" will probably not fit. In the bunk room if I remember correctly a 37" might fit, I did measure it but forget the results. The master bedroom does not have a slot for the tv but where the connections are, on top of the drawers, I would think in the 20+ inch range, depending on the stand etc.