HD receiver is not require unless you want to receive OTA signals. So if you have a 720p/1080i connections in the back of the receiver, you sould be all set.
I have a tv that is HDTV compatible so I require a HDTV receiver. My question is, if I go with DirecTV and get their HDTV receiver, would I require an additional HDTV receiver because my tv doesn?t one built in? I guess my question really comes down to what is the advantage of getting a tv with a HDTV receiver built in if most providers require that you use one of their receivers?
Thanks for any help you can provide!