All out internet and TV connection failure

If there is a significant amount of snow on top of a cable utility box that is located outside, could that affect your internet and tv service up to the point of no service. If so, I would like to understand why this would occur since I thought the utility box is wired and what feeds the home is wired. Is there some type of communication satellite link that is interupted by the snow barrier that could trip a switch and cause a failure of service to occur??