I was too curious to wait, so I played my 630TS and it doesn't show those lines, even on static title screens with extreme contrast.
Turning the Picture control from one extreme to the other gives you no signal at the CCW end of the range, and then if you turn it up (CW) too far, the picture distorts and eventually loses sync.
The tuner has gotten a little flaky, no doubt from sitting around without being played. I really need to go around and exercise all of my restored sets more often.
Phil Nelson
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