Telestrator
|
|
The telestrator is a device that allows its operator to draw a freehand sketch over a motion picture image. It was invented by physicist Leonard Reiffel, who used it to draw illustrations on a series of science shows he did for public television in the late 1960s. American football announcer John Madden introduced the device to a national audience when he used one during the TV coverage of Super Bowl XVI, and is generally credited with popularizing the use of Telestration during sports commentary. Telestrators are also widely used in televised weather reports.