Re: My glasses, my glasses, I've lost my glasses
That's because there are only two ways of achieving that:
1) Beam the image directly into your eyes. Personal viewing. Very difficult indeed.
2) Fill the room with some kind of *stuff* which the image can reflect off (e.g. a huge plastic slab with nonlinear optical properties)
No magic "you are my only hope" holograms projected by your set-top box in reality, no Sir!
Oh, I forgot:
3) Write the image directly into your visual cortex. Yummy, but even tougher.
In the end, holograms will be good for visualization and Personal Computing, but not so much for entertainment. Even for the pr0nz. I am not sure about watching a bunch of people seemingly having a go on my sofa.