Hello. My name is ***** ***** I will be assisting you today.
I have a Dish hopper and WD hard drive, have not heard this was possible but I will try it myself now and report back to you.
I went to settings --> external hard drive --> plugged WD hard drive in.
Then receive message The attached USB storage device needs to be reformatted to support DISH Network DVR functionality. ALl existing data on the device will be erased. Do you want to reformat the device?
Do you get a message like this when you plug the hard drive in?
After format is complete I have an option under From: and TO: ***** ***** Set Top Box and External Device 1
I was then able to transfer a show to my external hard drive.