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== History of Television as a Medium ==
== History of Television as a Medium ==
[[Image:OTVbelweder-front.jpg|250px|thumb|right|OT-1471 Belweder, Poland, 1957<small><br>
[[Image:OTVbelweder-front.jpg|200px|thumb|right|OT-1471 Belweder, Poland, 1957<small><br>
1. power switch / volume<br>
1. power switch / volume<br>
2. brightness<br>
2. brightness<br>