There was a post about projection units to display on a screen or wall. My experience is only to those portable ones and not the old gun types.

My last job I had to set these up for faculty use at the state university for presentations and movies that they showed in the class room. My new job requires one to be carried for presentation uses. From my experience I do not recommend them as a replacement for your ordinary TV or Gaming. Extended hours of use starts
to detiorate the image and color/contrast rapidly. The brighter the room is the more noticeable the fading looks.

In order to keep the image quality looking good replacements bulbs are need and can run over $120. More if you want longer life but even longer life still gives you the washed image.

I do think they are great for Movies and special Sports to watch but I do not recommend it in place of your regular TV or contant gaming viewing as the image and color will not last. Unless $$ is no object and you don't mind replacing the bulb constantly if you are picky on quality color and image then this is a great option and convenient option.

Just some food for thought ...