As a "geriatric millennial," I remember my dad teaching me how to manually degauss the color TV that I magnetized while playing with one of Dad's magnet to see the neat lights. The trick is to run the magnet around the outside of the screen, then carefully back the magnet away from the screen to a distance of about 10 feet while making decreasing spirals in the air over a period of about two to three minutes.
The things you remember from childhood later in life...
@gepandz @SwiftOnSecurity ooo the magnet trick. I went one further, grabbed an electric drill and turned it on round the edges of the screen.
Same effect as your magnet, but with less effort from me 🤣
Dad taught me what his dad had taught him. That was the kids' job when my grandfather fixed the new-fangled color TVs at the time, so they probably hadn't figured out the electric drill trick, yet, or he didn't trust a pre-teen with a 1950s electric drill with a magnet taped to the bit. 😂