I assume you have already done a proper Forum Search for your model number in case other people have already answered your question ?
If so and that didn't help then check out this thread: https://community.sling.com/message/10363#10363
Come back if it that doesn't help either.
I am trying to configurate my SlingBox 500 with a Motorola HDPVR DSR 630 (with Shaw Direct Satellite).
I tried all the options possible (with PVR or Satellite, for Motorola or Shaw Direct) and I am able to see the live TV, but the remote control doesn't work.
Please help me, I really don't know what to do now !!!