PREFACE
After writing about television broadcasting systems for more than two decades in a world of conventional radio and television and then the Internet, I did not think it was very likely that a completely new medium would show up. It seemed that most things were already invented and that most innovation would be in the realm of improvements. However, one day it happened. I understood that something new was on the move.
When I started to work with satellite IP distribution a few years ago, I saw digital signage as a very specialized business media–related application. Retail chains and gaming companies used VHS recorders and DVD players in their stores to improve business. Some closed-circuit television networks also were used for gaming ...
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