Read and understand this about , Real Digital Tv Channels , Virtual Digital Tv Channels , Analog Tv Channels ,
http://forum.tvfool.com/showthread.php?t=695 . Here are places to buy Tv antennas and etc.
http://www.3starinc.com ,
http://www.solidsignal.com ,
http://www.starkelectronic.com ,
http://www.amazon.com