It's amazing how the new board just accepts the old tube... though it's also rather surprising that you can still get a CRT chassis at all in this day and age. I wonder how long they'll be produced for, as the market can't be huge.
i remember the Panasonic green line tuning , back in the day they were super reliable sets the old Panasonics never did see many in the workshop and the tubes were good too they seamed to last well too , great replacement works well