Complex sentence: The programme was a pioneering precursor to the better remembered BBC music programme The Old Grey Whistle Test (1971-87), however, unlike its successor, most of the editions of "Colour Me Pop" are lost.
Split into simpler sentences: The programme was a pioneering precursor to the better remembered BBC music programme "The Old Grey Whistle Test" (1971-87). Unlike its successor, most of the editions of "Colour Me Pop" are lost.