Sorry to hear you are having this issue, I rather hoped Panasonic had fixed this with their most recent firmware update on October 7th.
Your best bet is to try and get your Sky box updated to a version 3 box because I don't think a fix from Panasonic is going to happen any time soon.
I haven't had any issues with my new V3 Sky Q box, and, in my opinion, think the picture quality is better overall with the new box.
Best of luck.
