Perusing a piece at Syfy took me to a source article over at Neatorama which had some Tron factoids and video clips, one of which was the original Lisberger Studios Tron promo below.  It’s currently over at YouTubeThis is the original Tron. This is a promo was created by Steven
Lisberger and was used to promote Lisberger Studio Inc. Steven
Lisberger called the electronic figure Tron (Short for electronic…
Duh!). He ended up selling this promo to multiple radio stations. You
can find this on the Tron 20th Anniversary Collector’s Edition DVD.