I have a Sherwood Newcastle R 871 reciever in my home theatre. I am trying to program the Directv HD dvr remote (RC23/RC24) to work with the reciever. None of the codes supplied by Directv work, nor does manually running through all the codes in the remotes. Anyone have a suggestion?

Test

I have a Newcastle 925 and have not been able to get this to work either. Please post if you find something.