For three grand there about's, you can hook your tv or pc up to a wall projector, that physically has the effect of a old reel to reel projector your grand parents had when they would show home movies on a large table cloth they'd nailed to the wall.
Star Wars the size of the wall in your living room.
Light sabre duels at twice actual size.
Video games the size of a wall.
That's the equivalence possibly of a 12 METER TV screen.
This is turn of the century technology.
You've never seen a demonstration?