The switchboard (picture 1) and the attentive family (picture 2) are part of a test being made in Chicago of a device called Phonevision, the brainchild of Zenith Radio Corporation's Eugene McDonald Jr.
Under PV, a television set owner learns that a certain movie is being schulded at a given time. It goes out over a TV channel and shows on his set a confusion of blurs. If he calls the Phonevision switchboard, an unscrambling device on his set, which is hooked up to the phone wires, is turned on and the blurs become a clear picture. He will be billed at the end of the month - $1 per show in current test.
Eugene McDonald Jr relaxes peacefully in easy chair while his children are enthralled by Phonevision movies whose sound comes to them via earphones.
Transmitting crew works in PV control room which is the same as in a normal TV station except for the two racks at left which scramble the picture.
Scrambled image of movie (left) appears on all television sets. After the operator puts in the Phonevision plug, the image on PV sets settles down.
 and the attentive family (picture 2) are part of a test being made in Chicago of a device called Phonevision, th...){kind=link}
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