Years ago I worked on a home that apparently bad been build more or less on top of a lodestone. At least that was my best guess.

Clients 36 living room CRT TV wouldn't hold the colors, and when I went there to install a satellite, my compass wouldn't read correctly if I got near the house.

I could walk across the yard and the compass would read north as it should but when I walked towards the house, the compass would slowly start moving until it was well off the mark.

After just setting the dish up by eyeballing it we moved the TV to the second floor, I used a degaussing ring on it and it worked fine.

Not sure if anything more was done, but I didn't really want to get into hours and hours of figuring it out.


In my personal house there is a niche in the kitchen for a small TV, and I had a small CRT TV in it. Behind that niche is the lines for the second floor HVAC, HVAC power and HVAC thermostat. Kill that system and the TV would work fine. Power the HVAC on and the TV colors went crazy...

A flat panel found it's way there in short order....