Earlier this year, luxury “gadgeteer,” Stuart Hughes, created a stir in the world of televisions by releasing the PrestigeHD Supreme Rose Edition, available to anyone willing to pay its retail price of $2.26 million. This makes it the world’s most expensive television set. It is coated in 28 kilograms of 18-carat rose gold and studded with 72 round-cut, 1-carat diamonds...