Complex sentence: The series was produced by the BBC and aired in 1969 on BBC Two, and both the book and the TV material were written by art historian Kenneth Clark (1903-1983), who also hosted the series.
Split into simpler sentences: The series was produced by the BBC and aired in 1969 on BBC Two. Both the television material and an accompanying book were written by art historian Kenneth Clark (1903-1983), who also presented the series.