Tim S wrote:

Tried my new 2A/10000-turn electromagnet on the colour TV to see how it bent
electron beams. Discovered the joy of inbuilt degaussing coils, about 50
times before my parents came back. Nearly Darwined by that one!

Moving an AC electromagnet slowly away from a TV will degauss it quite
reasonably. Much easier than power cycling it - especially as some are
designed not to degauss unless they've been off for a while.

Andy