| 摘要 |
The method involves use of a teletext data receiver system which can be switched from a normal mode to an interactive mode. A particular page of teletext is used in the interactive mode. N steps of teletext words are transmitted which represent the quiz questions, and the TV viewer response to the questions asked are displayed on the TV screen (5). The viewer responses are then compared with the correct answers, to provide a set of results. By use of a personal code, a calculation step is initiated which allows the viewer to obtain a complete set of results in the form of coded words representing the score. The score is displayed on the teletext screen.
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