I live in a mountainous region at an elevation of ca. 2165 meters. I had cable TV for many years until I got HDTV. I got tired of the cable TV company's excuses for lost channels and macro-blocking. Not only that, they only provided a handful of HDTV channels compared to Directv. So a few years ago I switched to Directv and have been a happy camper ever since. Oh sure, especially where I live, snow can be a major problem regardless of who your service provider is.
Before the Directv installer came out, I ordered a Slimline Satellite Dish Heater for both the reflector and feed horn. The satellite dish heater works like a charm. The heater has thermostat control and stays on 24/7. The snow rarely accumulates on the reflector and feedhorn. It certainly can however during the most intense winter storms. Nothing can withstand those. Besides the power usually goes out any way. However, along the arm leading out to the feed horn snow tends to accumulate but never builds up to where it blocks the reflector and feed horn though. When the ice sickles get up to 0.5 to 0.8 meter long hanging from the feed horn support arm, I do go up on a ladder and gently knock them off just in case they weigh enough to cause the satellite dish to deflect. Of course when the power goes out, the satellite dish heater goes off too. Then snow tends to accumulate on the reflector and feed horn during heavy snowfall. So, during those rare times I do have to go up a ladder and brush the snow off the reflector. Often, because the reflector has some latent heat, the snow brushes off like water off a duck's back.
The long and short of it is this. Except during really severe weather, I get all my channels from Directv. I can tell you this. I will never go back to cable TV.