This has happened to two different makes/models of CRT TVs in my house now - and a third died completely. For no apparent reason both tvs suddenly developed circles around the center of the screen of intense color. I presumed it was a degaussing issue as all the colours were present (black and white looks pretty much ok) but wrong. However having searched around here it looks like something else might be up and a "normal" degaussing-required problem would not be so intense or uniform. For example this tv has always had two greeny "ears" on the screen which i've assumed is due to the internal speakers. We turn the tv (etc) off at the wall socket every night and during the day if we're going out so this should mean the tv(s) will be degaussing every day. But on saturday we watched some TV in the morning, turn the tv off at it's own push button, went out, came back and it was in purple circle land. anyway, we have hand reared toddlers, it's possible both tvs could have gotten boshed, could it be something that needs adusting?