I received this email...
There also is a link to an Excel spreadsheet of the channels affected and at what times the interference may take place.
Between 2/29 and 3/8, you may notice a very brief interruption in TV service due to Sun Outages. These interruptions last only a few minutes and are caused by the sun's interference with satellites that deliver TV service. The service will be restored automatically and there is nothing you will need to do
There also is a link to an Excel spreadsheet of the channels affected and at what times the interference may take place.