There used to be a group of a few powervu channels where only the audio could be heard, and one time during a blind search my receiver started receiving the video for one of them. I discoverd that this one channel that I could receive had different PIDS than the non-viewable version of the channel. I could not duplicate finding this channel ITC again with blind search, but I could manually enter those PIDS and receive the video and audio. I don't know if this is considered hacking or not? I found the channel ITC with a blind scan and they were listed on lyngsat so I guess it was OK. I did keep the PIDS to myself at the time. The channels are all gone now, but it was interesting while it lasted. I figured maybe the provider was doing that as a way of making the channels receivable on a regular FTA receiver. I thought there might be a way for them to hide PIDS for a channel from a consumer FTA receiver, but an installer could enter them into a plain FTA receiver, or they could enter them and ship the unit to a customer, and maybe they were not hidden when I did the blind scan that found them.