We have Dish Network at our house in 19930. We have one HDTV and two normal TV's The local channels in Salisbury, Md. would not grant a waiver so to get our beloved Ravens games I need an OTA. Channels are only UHF. I would like a combo unit that would connect to the dish and use the same cable. Please advise which antenna you would purchase for this dilemma. The site says we need a violet antenna as we are 32 miles from the transmitter. There is no elavation in Delaware. No real obstructions either. Thanks for any and all help.