The world’s biggest, most expensive OLED TV hides a wicked cool party trick

Even though the best 4K TVs have evolved into sleek flat panels with minimal bezels, most of them look pretty generic when powered off. With some exceptions, such as Samsung’s The Frame TVs, they simply hang on the wall or sit atop your entertainment center, taking up as much space as you can afford to relinquish. Ah, but this is where Bang & Olufsen’s Beovision Harmony line stands — and moves — apart.Launched four years ago at Milan Design

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