Here in Delhi, they gave me a new dish when I got the TS+HD STB. But then the antenna is still a solid dish and not a mesh antenna. Maybe this has something to do with my location and the fact that in delhi there is not much rains.Also the angle of the antenna here is such that no water collects on the dish.
The Dish TruHD service came with a even bigger antenna that was also shaped such that no water would collect on the antenna.
The problem with reception in rainy season is not just related to the water collecting on the antenna but also has a lot to do with the clouds. I have had reception cut for an extended period of time when there were very heavy rainclouds above.
-- no1lives4ever