Let’s see who can come up with this using my hazy recollection.
I remember watching a documentary series with my father when I was a child. It was a multi-episode series about the entire war. It was along the lines of “Victory at Sea” or “The World at War.” I would have seen it mid to late 70s or early 80s. We had cable pretty early but I have the impression that it was on syndicated tv or PBS.
The main identifying aspect of the series was that it was more or all about the Soviet war effort. My father was very middle of the road and not likely to spout better dead than red but I remember him commenting on one particular episode. It was about the Soviet union entering the war against Japan. He was a bit annoyed that it was portrayed as a heroic effort to help the allies against the evil empire. He explained to me it was a landgrab at the end of the war and that they entered into it too late to be a help to anyone but themselves.
Name that series.