HD channels have gone

[Race0311]

Tonight some of my HD channels have reverted to SD, these include sky one, sky atlantic, sky witness and e4. How can I get them back to HD?

[Daniel0210]

@Race0311 

Its always worth starting with a reboot of the main Sky Q box, then once that’s back up and running do the same with any mini boxes if applicable -
~ Using the remote put your main Sky Q box into standby
~ switch the box off at the plug
~ wait at least 30 seconds and then switch the box back on at the plug
~ follow the on screen instructions
~ when the screen goes blank and the blue Q stops pulsating wait another 30 seconds
~ press the 🏠 button

Allow 5-10 minutes before things hopefully revert back to normal.