Dish Receivers Awful!!! Dish HD Looks Awful On Samsung 4665F - Why?

Dish HD looks awful on Samsung 4665F - Why? - dish receivers awful!!!

We bought a new Samsung 46 "LCD TV for Christmas, and I knew that the SD picture is not very good, so I called and had flattening of the high-definition receiver and antenna. When all is both to the technology We were very disappointed and I connected with the high-definition picture. If the image is still well off, but there was a movement (like a football game) the pixeling times are over, that moves like an SD signal. If you review draft guidance to the small preview screen looks great, but terrible if you full screen mode. signal going well and we tried two different HD receivers, but there is no picture. Is there a place on television that I am missing somewhere, or is there something wrong with the TV itself?