Being in the telecom business I can say everyone forgets about us. Over build your home with network lines. Minimum 2 cat5 and 1 coax to each jack location. The wire is cheap, usually around $0.20/ft. The labor to install it after the fact will kill you, if its even possible.
I also recommend network lines and power outlets on the corners of your home in the soffet, makes it really nice to add security cameras if you wanted to.
I also recommend network lines and power outlets on the corners of your home in the soffet, makes it really nice to add security cameras if you wanted to.