great find by Our God Is Speed - a Tube special on Berlin from 1983

(he found it at Exile on Moan Street)

same city, a decade later, another doc -- tekno Berlin

which reminds me, you should read Tobias Rapp's great book on Berlin clubscene a decade after that -- ie. 2000s -- which is now out in English - Lost and Sound: Berlin, Techno and the Easyjet Set -