This footage has already been on DVD without repair, and you're right, overscan means it can't be seen. I'm addressing it now because it's going on the web and it's more bothersome. Quite a lot of straight cropping would be needed to get rid of it. I would prefer my existing crude repair method to that.
I think a spatial is probably the way to go, not temporal, since the same part is affected in surrounding frames.
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