bjh,<br /><br />You have changed the output from 59 > 21 and have retuned the TV and got the UBI back on the TV then leave it as it is since it's working. Please write cross out UHF59 on the pink Upgrade Service Order and put UHF21 so you won't forget also write down your new tuning settings.<br /><br />If you wish PM me your Customer ID and I will add UHF21 to your account incase you ever misplace the SO.