@Angela125 the buffeting sounds like the wifi signal from the hub to the Glass is notvstrong dnough. Run the Network test in the Get Help menu of the Netflix app. To watch in UHD thst needs to be greater than 25Mb/s ideally over 35Mb/s.Many people need more than a basic Sky hub to achieve those spedds and either buy https://www.sky.com/help/articles/sky-wifi-max or use their own third party wifi solution.
There is an issue with lip dyncsome customers are experiencing I find changing the channel briefly or going back to the home menu sorts it for me.
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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
