Open mouth fly-casting technique

Greetings,
Years ago (late 60's), I was watching the Wide World of Sports and Curt
Gowdy was hosting a fishing/ fly casting show, where a gentleman used an
open mouth casting technique. I was a kid at the time, so I can't remember
much other than he put the line in his mouth during the duration of the
front and back movements, and opened his mouth on the forward cast to
release. I also do remember Gowdy saying he was a champion in distance
casting for accuracy. Does anyone here remember the fisherman's name, or
anything about the open mouth casting technique? Any links would be
helpful.
-tom