Has your Sky HD lost it’s sparkle? Video or audio stuttering on playback if recording another channel? Then try the “Planner Rebuild Plan”!
Press Services on your remote. Then press 4, 0, 1, Select (you won’t see anything happen until you press the Select button).
This gets you to a hidden maintenance menu.
Press 7 for Planner Rebuild.
This will rebuild the Planner, while keeping all your programs, and will often cure the problem. Don’t press 8 - it will delete all your recorded programs!