Complex sentence: The series centres on a new current affairs show being launched by the BBC in June 1956, at the time of the Suez Crisis-a period setting which has led to comparisons with "Mad Men".
Split into simpler sentences: The series centres on a new current affairs show being launched by the BBC in June 1956. It is set on a British topical news programme in 1956, at the time of the Suez Crisis-a period setting which has led to comparisons with "Mad Men".