Very easy if you have the correct tools.
Hdmi through the floor.
If you dont want to purchase the tools because you feel it is a waste of money then just pay someone to do it.
Once 2 inches 5 1 cm have been penetrated it should be much easier to drill.
It sounds like a lot but when you think about it s aptly named.
Use a fish tape or a fish stick a rigid pole for pulling wires when you need to pass them through the wall plates to the floor above or below the one on which you re working.
If drilling downward through the floor repeat the above procedure but expect to pass through 3 4 inch 1 9 cm sub floor and up to an additional 3 4 inch 1 9 cm of finish floor hardwood etc.
Support cables at 4 1 2 inch intervals with appropriate staples or clamps.
At 14m i think it may be worth going for a quality hdmi cable.
Run wire through hole.
All that hdmi arc really does is allow audio to pass through the same hdmi cable that s used to transfer video.
Feed the wire through the back of the outlet box insert the box in the wall and mount it in place.
A local cable installer satellite installer or electrician can run it for you.
It is recommended that hdmi source and destination devices be no farther than 15 feet apart for the best result but there are hdmi cables that are available that can extend this reliably to about 30 feet.
The stitching method is a novel solution to getting past floor joists but a good finish will be dependent on the thickness of your plasterboard.
Now all hdmi over cat 6 baluns are not created equal.
Drill destination hole in floor.
Feed cables through the holes.
Hdmi arc stands for high definition multimedia interface audio return channel.
Not every poke thru device is the same.
With the largest line in the industry explore options that range from small to large with a variety of covers for every application.
Some crudely bridge the hdmi and cat 6 cables by relying on the signal power of the original video source this limits the range considerably.
Running an hdmi is the same as running a coax cable from floor to floor.