I'm hearing the "Old Radio" archives, and Dimension X it's highly recommended for what it was for its era. Remember: the sci-fi folks mostly were the progressive ones, just look at Star Trek from the 60's. Or The Twilight Zone from the 50's.
When discussing the era of scientific racism, it's a mistake to assume that interest in science correlated with socially progressive beliefs, in the modern sense of progress.
It depends on the artwork. Most pulp and scifi comics were progressive and "scientific racism" had no sense from a huge intergalactic biology review. Wars? yes, OFC.
Stereotypes? Back and forth. Cultures were far more isolated back in the day and the typical " 'murican Southern/Chicagoan journalist/NYC cop" on a Franco-Belgian comic-book was given as a fact.
