Just found this clip on YouTube...
https://www.youtube.com/watch?v=3Hyv91fHtHs
...of Hank on Razzmatazz (a 1980s kids' pop TV show). Quite interesting; is that a Roland RE 501 he's using? And demonstrating a 'talk tube'!
The little girl playing Greensleeves is really good - reminds me of my primary teaching days!