[Username1]

So, If I understand this correctly, the lines are not interlacing...? (like wa2ise said) So if that is it, then the scan lines are on top of one another, you should see horizontal objects loose definition as the tops or bottoms of horizontal items seem to jitter, or bounce up and down, or be unfocused.... ?

Or as you move your finger down the screen and focus your eye on it, you fail to be able to follow scan lines...?

I really don't see anything in those pictures above.... I believe I have seen the phenomenon before, but as some limited interference where the picture seems to jump up and down by a small bit, possibly by the size of a scan line....?

I guess a photo will not show it well..... So does it do this with several signal sources....? I guess you should look at old picture stability circuits and find that part of your tv and look for a failure in that area.....