Holland and Murray's Battle of Britain video series is excellent. Also their coverage of the early war in the North African desert. They have just done a series on Operation Pedestal, the convoy to Malta containg the tanker SS Ohio, ( which was captained by my BiL's grandfather ).
So much misunderstanding surrounds the build up to and early part of WW2: Chamberlain bought time with his "piece of paper" that allowed the RN and RAF to be better prepared for the inevitable; the German army High Command, ( OKW ) held the view that the army would not be ready until the mid 1940s, something the Kreigsmarine agreed with, and as a consequence 70% of the German army's transport was horse drawn, and the majority of the tank force comprised models that were never intended for front line combat, ( Pzkpfw1 & 2 ), or were captured Czech vehicles, ( almost all of Rommel's 7th Panzer Dividion in France were Czech 35ts or 38ts ). The British and French had better than parity in tanks and planes, in both quality and quantity, but the French CandC and operational dictrine were disastrously flawed.