It's part of the seasons changing, a satellite tech could explain better than I can but if you've been here enough years you begin to see the pattern... The same thing happens several time a year when the coverage of the satellites are affected by the angle of the planet and we don't get as strong a signal as we do during other times of the year. CC has a hard time keeping a lock on the channels and on the weekends they don't have staff in doing a reset every time a channel is lost. There are times where I have wanted to kill someone when Speed TV was down and there was a Formula 1 race on. But you have to deal with it, I imagine the pedophiles must be banging their heads against the wall when Toddlers in Tiaras is blacked out...
Solar flares have a big impact as well so if the Sun farted in the last couple of days expect a lot of outages.