When something called "high fidelity" assumed fad status during the 1950s, many manufacturers climbed on board by the simple expedient of adorning their last year's product with a high fidelity label. The Home Theater bandwagon is a little harder to jump on, because loudspeakers for use with television sets require something "ordinary" stereo speakers don't: magnetic shielding (or, more accurately, magnetic cancellation). Without it, placing the speakers within a few feet of a large-screen set does psychedelic-type things to the color (footnote 1). However, adding magnetic shielding, usually in the form of a second magnet glued to the rear of each loudspeaker's motor magnet, is the only thing that some loudspeaker manufacturers change before slapping a Home Theater label on last year's stereo speakers.