| | | avidsportsfan said "What is an antenna? " |
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for you young whippersnappers who didn't have to watch all your TV over-the-air:
A TV antena is a metal device whose physical properties allow it to gather and convert electromagnetic wave energy, sent outward by your local broadcaster, into electrical energy. The harvested energy is then fed to a receiver such as a TV or radio by means of a coaxial cable.
The receiver then further converts the energy into the original message intended by the broadcaster to entertain and inform you.
Also, there's an antenna inside your cellphone that makes it work. Take your pick