Here is American Self Defence TKD Style produced by the USTF in the 1980s.
You will see it is rather humorous to watch now – full of really bad advice and unrealistic scenarios (I’m sure they wouldn’t mind me saying that). What is really interesting is the snippets of TKD stuff throughout including some kicks breaking etc. Note how the USTF taught the side and turning kicks with the REALLY low knee chamber position. Not sure if they still do or not?
Remember too – at that time it was a “state of the art” production and hats off to them for that for sure.
Anyway – some classic footage and really worth a look.