green shadowing

[jpdylon]

Placement of the deflection yoke can cause corner color blotches. I would perform a complete purity setup (magnets first, then yoke,) then grayscale and see how the color looks then.

If the problem only occurs on VHF then the tuner is at fault. Could be something silly like oxidized contacts, open coil, tube, grounding problem, or someone could have been screwing with the alignment.

Does the fine tuning effect the smear at all?