The satellite TV will allow you to access more channels than the cable one, but this depends on your provider (usually around 300)
The downtimes that you will experience with satellite TV subscription are less than 1%, which means that there are almost none at all.
Most of the satellite TV providers will offer you 24/7 technical support and they will get every problem repaired withing less than a day.
The quality of the picture with satellite TV subscription is way better than this with cable one.
Here is a hub with the basic features of the satellite TV subscription and I think you will find it useful. https://hubpages.com/technology/Satellite-TV-Basic...