OK, so this is how I looked in mid-1981 (I'm the chap selling records in the clubs and from my Mail-Order office - yes, always wearing the bow tie!). [The programme transmitted in August, so it was filmed about June/July 1981].
[The bulk of the interview is in Part 4; I'm also about one minute into Part 6, with more of the interview running under the visuals].
The programme, a 30-minute teen documentary strand called Twentieth Century Box, is from October 1981, only shown in London. It also marks Danny Baker's very first job in television.
(Thanks to Ian and all for transcibing my VHS tape for YouTube).