I have it wired with the OTA and D* going into the hughes and the S-Video going to the Replay. I also have another feed of the antenna into Replay via Antenna in becuase I didn't want to miss Enterprise Sunday night... (Since the Replay won't tell the Hughes to tune to 18, I would have lost a new episode - Our UPN plays new shows on Sunday BTW.)
My thought was to tell Replay that I no longer had an OTA connection, which would then force it to try to get channel 10 tru the D*, but then I'd lose guide info. I did find that if you enter just the channel, say 10, into the Hughes, it will wait a second and then tune to 10-1. So, in theory, If I could get Replay to look for 10 on the Hughes, it would IR a 10 and the Hughes would add the -1.
Hmmm...