I have now and then thought about this. And felt an urge to invent something like it.
But I'm not expecting any great results or success from this casual desire just yet.

Dreams are somewhat beyond the limits of a television screen. You would lose alot of the essence of the dream.

For instance you have the tone of color. The feelings and atmosphere. And the entire viewing aspect and sound would be really complicated to convert. Holographic recording might lend a little more flexibility.

But since the dream is an experience. I dont think you would present it through such a device. It would be more a device of viewing experience itself. That is obviously beyond computer or television technology.

To view experience. I think this sort of technology is getting up there with time travel.
I'd say it's possible for a highly evolved entity to have access to these things without any technology. Life experience is shared between the....more experienced entity's. Shall I say. How they do this I am assuming would be somewhat similar to how you could record and view dreams. Though I believe there is a lot to learn before we are able to understand how to do this.