Channels coming up out of service
Over the past month several channels have been showing up as out of service. One channell went blank as I was watching it and went to the "Not Availabe at this time. check back later." message. The number of channels changes daily and seems to be increasing. Sometimes the regular channel is out and sometimes the HD version is out. Sometimes both are out. I keep checking to see if there are any issues but none are ever listed. What is going on?