said by John97:
A couple of options to consider.. You could future-proof the room by installing extra AC outlets, coax drops, ethernet drops, phone jacks, etc. Or, while you have everything open put in some conduit runs with outlet boxes so you can fish cable later. Just put blank faceplates on the outlet boxes to close things up.
I agree. 28 Cat 6 and 12 RG 6 coax in each room should do it.