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.
Hi Al, Thanks for the reply. Last time I had a Philips box which was not on the list, but I used another Philips device and it worked well enough. This time, Polaroid is not listed as a company, so I have problems starting out on that line of inquiry. I was hoping someone might know if this box was similar to another and so see whether I could use that. I am only looking for channel changing really.