Is it possible to make a universal audio / video player for the whole house on my own?

Question

Video

I am doing repairs at home, and I remembered my old idea, which once upon a time could not be realized.
The meaning is this: in one room there is a computer, in the hall there is a TV, in the kitchen there is a TV.
option 1: for example, I watch a movie / video on YouTube on a computer, and I decide to go to the hall, pause the video, go to the hall and continue watching on TV
option 2: I watch a movie in the hall, I wanted tea, I go to the kitchen and continue to watch there movie while making tea
option 3: cooking in the kitchen, I got bored, turn on the music / movie / video on YouTube (picked up account with subscriptions)
Maybe someone has come across and knows about some new product. which can solve my issue?
maybe something like home channels can be done?
and on the TV then switching channels you get to different media sources, but again, you can’t switch to the computer screen just like that, there is more than one computer at home)

Answer 1

maybe this will save - www.ebay.com/itm/MXQ-Kodi-XBMC-Quad-Core-Android-4...

Answer 2

You can try to do this, but there will be a lot of fuss.
Let's take advantage of the fact that current TVs have multiple HDMI inputs. Let's say we have three TVs and each has four HDMI-INPUTS and one composite OUTPUT.
For each OUTPUT we put a converter from a composite to HDMI, after it we put an HDMI divider into three identical signals. We pull each of them to the rest of the TVs, using an adapter (you will find it yourself on Ali on request "hdmi via rj45"). Thus, each TV will include three cables from all other TVs.
And insert a media player into the fourth hdmi port. He will show YouTube.
They let the movie in room 1 on TV1. We go to room2, turn on TV2 there and select as the input the HDMI that comes to TV2 from TV1.

Answer 3

This is done on the basis of multi-room systems and such engineering pieces of iron as Integra, HDL Bus Pro. You need to consult with the developers of smart home systems. For one customer, he made an audio system around the perimeter of his site. According to his Wi-Fi signal (phone), it is tracked where he is going and, accordingly, certain zones of the site are cut in, and the previous ones are extinguished. For video, you will have an Integra module, since you can connect anything to it via HDMI cables: a TV, a speaker system, an X-BOX, a controller with scripts for lowering curtains in each room, etc.
You just have to buy very high-quality HDMI cables, since background interference prevents the integra from detecting the device at sufficiently large distances. or put a wi-fi point ...