From what I've been told, it removes the magnetic charge that builds up on the metal EMI shield over time. When the EMI shield builds a charge, it can mess with the electron gun, causing a fuzzy image ...

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Flat panel TVs have spoiled us. It used to be that a big display took up a lot of room on your desk or living room because of the depth of the CRT’s electron gun. We wonder what the designers of the ...