As is given as answers to other question askers here are places to buy Tv antennas and etc..
http://www.solidsignal.com ,
http://www.3starinc.com ,
http://www.starkelectronic.com ,
http://www.amazon.com . It is Ok to read other question askers questions and the answers , a lot of the answers are repeated over and over again and again , this is a way to get information that applies to your situation.