i am not computer savy. how do i hook an external hard drive to my 211k and will this turn it into a dvr (pause and record)? i don't need a lot of record space, but would like some and the pause feature. ihave a 622 in den ,but retirement brings more tv watching late at night in bedroom and i miss the replay ability of dvr. do i plug it in and format it with the receiver or does it have to be formatted on a computer?