I already pay for and receive HD from Directv for my 2 HD-DVR's. I just replaced my SD kitchen TV with an HD model. I also replaced my older Hughes SD receiver in the kitchen with a Directv H21-200 receiver. Do I need a B-Band Converter to receive HD thru the newer receiver. I cannot get HD with or without the Converter. Perhaps it was a CS Rep error when they activated the new receiver.