Still, it's been a couple of days now, and touch wood, it's still going strong. It's an old Sony WEGA that weighs an absolute ton and at just 36" is considered a small screen size these days... but the picture is just beautiful (when it doesn't flicker, that is). I suspect that this transient little break from flicker means it's going to really bug me if/when it returns...
My last CRT TV was a third-hand pre-widescreen Sony Trinitron - it had a perfect picture. Cost me nowt and I had it for years. Great TV!