This is a classic film that, alas, has not aged well. Unlike the double-vinyl release of the same show, this DVD rendering sounds like it was recorded thorugh a telephone. The DVD is, in fact, an excellent document of historical stuffs, but it suffers as a source of entertainment.  The sound is simply terrible (although dated, one would think better sound could be mixed in here).  Purchase only if you are a die-hard Bowie fan (like myself).  If you don't know Bowie, don't start here!