I stumbled across this article just now
https://www.broadbandtvnews.com/2018...s-sd-channels/
Sky Deutschland started the process toward switching off SD channels in November last year with messages on-screen and activating HD for all customers free of charge.
They had the advantage of all their customers having HD capable boxes, I don't know how close to this Sky UK is.
Just wondering what people thought on the matter. When will Sky UK switch off SD versions of their Pay TV channels?