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/thread/3300?tstart=0
Come back if it that doesn't help either.
thank your for your help
i mangaed to find a thread that the netgem 8320hd is the same codes as a neuf tv
hopefully this works fully