Yup. I see the same thing. No adjustment.
I checked the 470 pf mica under the 6SN7-GT V-108, and it measures fine. Don't have a leak tester though. A 470k resistor measured 617k so I replaced it - nothing.
It may not be a horizontal oscillator or discharge issue.
Perhaps it's in the tuner. But I get real clear audio via the test DVD.
I'll keep at it.
