[abooch]

By accident I put hide HD duplicates. I switched it back and now I can't even switch to a HD channel. I rebooted and nothing.

 

[jimmie57]

I had a similar experience once and it corrected itself after I changed the setting a couple of times to get it to take effect.
Try hiding them again, wait about 3 minutes, and then setting them back like you want it.

 

[otaliema]

If they just wont come back with the menu settings try these couple things.
Make sure SD duplicates are hidden. From live tv picture. Press and hold exit till you get a pop up that says your receiver has been set to Standard definion mode. Press and hold exit to change back. Wait a minute then repeate till you get the pop up that the unit is in HD mode. wait a few minutes check the guide.
2. If exit mode switch fails to work. Make sure the unit is in HD mode and RBR the box, failing that do a guide clear by resetting the unit again with in 10 minutes of previous reboot.