OK, first I am enjoying and learning... also i dont even know what the Nvidia Shield 2019 pro is, but i bought one by following the link above. Goofy, but a click to a "buy it now" is too much for me to pass! Any way, i'll figure that out. I love new tech.
NOW, I want to be able to play the same source throughout my house and outside and have it and the audio be synchronized. Ive done this with cable and DTV boxes at each location and it isnt always in sync. Most frequently it is a DTV DVR on one tv (the main that feeds audio through the house) and the others. I also want to be able to play video on all tvs and the same audio through the house. For example, Im having a sporting event party and want to watch the same game (in sync) all through the house and when commercials come on, i want to listen to music in all rooms, or maybe in some rooms. Or maybe i want to leave the sporting even on on all tvs but i want a different even on the main tv and its audio playing everywhere else. Im also considering multiple tvs on one wall.
All of my tvs are 4k and I upgrade them when it makes sense and there is a decent enough advancement. All of my audio equipment is decent, with my main room being the best. Receivers in house are all Denon and speakers are B&W. Main room is Pioneer Elite with Rotel amplification and some large floor standing B&Ws. Each room has its own sub as well. I take it pretty seriously, but havent made the jump to easy to control automation. I can run everything just fine, but literally no other human being can.
Regarding cutting the cord, Im close now. Contractor cut the DTV line and I havent missed it. 4K ATV with ATTNow is working just fine.