Cutting the cable, lets talk options and media setups

I have been reading this thread and I have a few questions. But first a little background. I have CABLEONE and pay approx. $266/month for 150 channels, phone and Internet (150Mbps). WAY TOO MUCH. I know I can reduce that bill by a great deal by subscribing to PlayStation Vue . My questions are:

• We have the PS4 in the den connected to the Television via HDMI cable how do I connect the other 3 sets in various rooms to get PlayStation vue channels? Do I need to purchase ROKU or similar and install the box on each additional set?
• If I need to purchase what route is suggested?