I am thinking of going to directv from dishnetwork and i would like to know if i wanted HD DVR's would i need a phone line?
Not necessary anymore, unless you want the Caller Id feature on it, otherwise, No.
don't forget if you want to order pay per view through the receiver, if you want to order pay per view without the phone line, you'll have to call directv or order online.
I find Online to be the easiest way !
Same here, and if you order online you get to watch it on every receiver, I don't' think you can do that if you order by phone or with the remote.