depends on the capabilities of your TV see its manual
for antenna reception you need ATSC tuning for the United States
If it does not have that get a converter box and an antenna << OR >> for better pictures get a HDTV tuner by Samsung and connect via Component/Audio cables or via HDMI (assumes the TV has a proper HDMI connection)
Either way unless you want to switch to satellite you need an antenna
For antenna requirements see:
http://www.antennaweb.orgAll of this answer assumes you live in the United States
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