I have a VHF and UHF antenna on a 60ft. tower with a rotor on the side of my house. Reception is good for the most part but I’m not sure how to get HD on my HDTV set OTA. My satalite has an HD decoder box and HD works fine through the Sat. with a Component video connection. Not sure how to get HD through my antenna. Broadcast shows in HD but I do not get it in HD, must be my connection method??? Any help would be appreciated.

i have a sharp aquos lcd tv and i just got a dish hd reciever. we have a surround sound box in the entertainment system. how do i hook up the surround sound to the tv so i can get sound whenever i switch inputs for example, it works with the satalite but when i switch the imput to imput 4, for the wii, i still get the satalite sound?