The strange thing about previewing HBO’s The Third Day in early March was that a very compelling element would have been the show’s integration with a live event in London. How that would have fit in narratively will remain a mystery. On the other hand, the fate of the solders in WWII’s Battle of Crete may be known, but producer Ian Cross gives it a thorough and modern examination in his new documentary series. Getting to write about both things was a pleasure.