WARNING: this will wipe out all of your recordings, all scheduled recordings, all series recordings (your series priority list), and all manual recordings!! Write down everything you can before you do this!
- The DVR should be turned on. Press CABLE, POWER to turn off the box.
- Immediately press OK/SELECT to bring up the diagnostics page.
- While on this screen, press the following key sequence (5 key presses) as follows: REPLAY (15-sec rewind, the counter-clockwise arrow), MyDVR (LIST on some remotes), MyDVR, MyDVR, Live. The DVR now should show "Clr" in the LED display.
- Press OK/SELECT to proceed with the reset. The STB should now reformat the HD & then peform a STB reset and begin to reload your Cable settings and Time Settings from the Head End. It will then begin to populate the Guide data over the next 2 - 24 hours.