ambilight
When I first saw the Philips Ambilight TVs, I thought they were the lamest gadget since the pet rock.

But then I saw one in person. And damned if it doesn’t work. Filling up the vague space of your peripheral vision with the right color really does make TV seem more real.

BTW, since women have better peripheral vision, I wonder how it is for them?

But why can’t anyone who has a home theater PC (or even just a regular TV) add on a couple of lamps (wired through a USB port in the HTPC case) that back light in the right color? Would this cause a patent problem with Philips, I wonder? If not, someone should make it, as I can imagine lots of people buying them, if they were at a modest price point.