That is why I listed the channels and recommend one antenna to start with. The stations/channels that will be received for sure are , W16CO-D 16 Religion , WHTM-DT 10 ABC and RTV and AccuWeather , WHP-TV 21 CBS and MyNetwork , WITF-DT 36 PBS. A simple rabbit ears type antenna will receive these stations/channels if placed in a south facing window , Here is how to aim simple rabbit ears antenna ,
http://www.kyes.com/antenna/pointing/pointing.html , Here are examples of Simple rabbit ears antenna , Channel Master CM4010 and TERK HDTVi . Radio Shack also has -> Simple Basic <- rods and loop indoor antenna (rabbit ears). The big HD7698P antenna is for the reception of the weaker tv stations channels that are listed. Remember that the tv must scan for the Digital Broadcast Tv Channels , sometimes called the 'air channels' because the transmissions travel through the air from the transmitting antenna to the receiving antenna. Do Not scan for cable tv channels.