This is new tv unit designs for hall 2020.
This is the design for large halls. In this you can make TV unit design on the whole wall.
If your hall is small, you can shrink the design according to the size of the hall. Take it up to 7 feet in height.
Put steel bars under it so that the plywood does not get spoiled by watering and clean the bottom of the TV unit.
You can buy online – https://www.urbanladder.com