Meanwhile, in Chicago, station WFLD introduced a teletext service called Keyfax, built on Ceefax technology as a joint venture with Honeywell and telecom compan

Meanwhile, in Chicago, station WFLD introduced a teletext service called Keyfax, built on Ceefax technology as a joint venture with Honeywell and telecom company Centel. To try and solve the chicken-and-egg problem with the adoption of teletext decoders, Keyfax started in Chicago by broadcasting a static rotation of the data pages all through the overnight hours. It was kind of fascinating to watch back then. https://youtu.be/Bgs0kbxo68w https://youtu.be/Bgs0kbxo68w