Germans in The Hague
Related: War In Western Europe: 1944-45
If you are into World War 2 footage, this is a gold mine. As per the name, the focus is on the battles themselves, rather than politics or "human interest" stories. There is particularly outstanding footage of street fighting, artillery actions, aerial dogfights, ground strafing, city bombing, and tank movements. Sometimes, the coverage is so close that I wonder whether the camera man made it out alive with all his limbs intact!
Coverage of the Eastern Front is excellent, with four episodes devoted to this massive "war within a war". The coverage is much more thorough and better formed than that of World at War, which I think skimps on this area. In fact, I have not found better Eastern Front coverage in any World War 2 documentary.
In terms of footage, there is some overlap between Big Battles and the well-known World at War. I would estimate that you will see up to 25-30% of the same battle footage in certain episodes (e.g. Desert War), though Big Battles tends to show longer portions of these identical clips.
In at least one case, Big Battles fails to reveal that footage is staged, e.g. when Soviet troops meet up to complete the Stalingrad encirclement. World at War makes a point of saying that this was staged for the camera while Big Battles does not. This type of oversight makes me wonder about other issues of accuracy with Big Battles, such as whether the footage shown was actually shot at the implied location.
Now I'll give some capsule reviews of the episodes.
Battle of France: Blitzkrieg
Battle of France: Defeat
Great coverage of the Blitzkrieg in the West. (Mistitled, because covers Poland, Holland, etc.)
Battle of Britain
Average overview of the British air war.
Battle of the Atlantic
Average coverage of the U-boat war.
Battle of the Pacific: The Rising Sun
Battle of the Pacific: The Setting Sun
Okay pair of episodes covering the American war in the Pacific.
Battle of the Desert
I think the structure of this one is ripped-off from World at War. At least, it is very similar!
Battle Over Europe
A good overview of the bombing campaign against Germany, containing a lot of city bombing and dogfight footage.
Battle of Normandy
A standout episode featuring fantastic air and ground battle footage from Normandy up to the breakout.
Battle of Italy
Decent coverage of the Italian campaign. Not one of my favorites, though.
Battle of Germany
Breakout through Battle of the Bulge/Ardennes. Good ground battle footage.
Battle of Berlin: The Russians are Coming
Battle of Berlin: Death of a City
Battle of Moscow
Battle of Stalingrad
Together, these four are my favorite episodes, because I haven't found better Eastern Front coverage anywhere! I think it is worth the price just for these episodes.