Be sure the cables plugging into the television are the same ones that are connected to the output port on the video switcher. If they aren't, you will not get a picture from the video switcher.
From Matthew Torres, former About.com Guide
Be sure the cables plugging into the television are the same ones that are connected to the output port on the video switcher. If they aren't, you will not get a picture from the video switcher.
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