It's kind of hard to impress anyone in home theatre anymore, but you'll probably pull it off with a no-one-can-hear-you-scream vacuum in your living room.
Samsung's new 7.1 Channel Blu-ray 3D Home theatre System has built-in vacuum tube amplifiers, which provides warmer sound. Samsung will be showing off the new system, along with a wireless 3D Blu-ray system, at CES next week. The vacuum tube home theatre system is the first to use a vacuum amplifier, so this, along with the accompanying dock, is the first time you'll be able to manipulate electrons in a tube to make your TV sound prettier. [Samsung]