🚀 go-pugleaf

In years past, I used to do television servicing and still have a
degaussing coil. In using them one placed the coil near the set, turned
it on, worked it all around the set, and then slowly backed away from
the set, prior to turning off the coil.

My guess as to the best solution for you is to look up the number of
a tv shop, call them and ask them if they would degauss your set if
you brought it by the shop, and at what cost. It would only take them
about a minute or two to do it. (I would not be inclined to tell them
that I moved this, tweeked that, etc) Just say you were playing with
a magnet near the set and did not know it would bother it.