Complex sentence: Series Five of the ITV programme "Foyle's War" was first aired in 2008; it comprised three episodes and is set in the period from April 1944 to May 1945.
Split into simpler sentences: Series Five of the ITV programme "Foyle's War" was first aired in 2008, and comprised three episodes. It is set in the period from April 1944 to May 1945.