Personal suggestion, I would watch the DVR events from the EHD and not transfer them to the Hopper. 1. because there is no need to, 2 because some people have reported problems when doing so.
I currently have a couple of 722's and would like to upgrade to a Hopper. I want to save all my movies to an External HD, will I be able to watch them all on the hopper?
It's going to work, tomorrow! Trust me on this, it take a day or two for the Hopper to settle in.....