@FW71 what Sky TV system are you buying out of Sky+HD, Sky Q, Sky Stream or Sky Glass as you have posted in the forum that supports Sky Broadband which is very u likely to be the direct cause of your picture issue.
Also check if it is an issue with the programme/channel or affects all channels. The forum is customer tomcustomer support and members need more info to becable the help.
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65inch Sky Glass, 3 Sky Streaming Pucks, Sky Ultrafast + and Sky SR213(white Wifi Max hub) main Wifi from 3 TP-Link Deco M4 units in access point mode
