I have a DSR-550 unit - recently got a remote - thinking I could go into a simple menu and scan for local HD channels, only to find there is no menu for that. if there is I can't find it. plus i don't want to do something that will make it useless. I have read though the FAQ part of this site and cant find the anwser to my problem. I do have the current NEP 737 - cant find the software ver - but im sure it has the last and latest software.