read this thread:
http://www.sadoun.net/forums/4dtv-c-...-dish-yes.html
If you are planning to get a C/Ku analog receiver, or DSR-920 or 922, make sure you get the 621 (not-universal Ku 621-2 model) because they wont work with the dual frequecy model.
There are a handful of channels you can get with 4 foot dish. Couple dozen extra maybe. There are many that the dish just wont get. I cant get the networks on it. I think Ice gets them on his 6 foot.
C band really needs 8ft plus to "do it right".