As World War 2 progressed and things got progressive worse for the axis powers, was there any noticeable shifts in their propaganda networks who now had to sell what was an increasingly obvious losing battle as progress towards victory?

More could be written, but to start, you might be interested in this previous post from the "Daily Life in Nazi Germany" section of the FAQ: "How did propaganda change in nazi Germany after Stalingrad and Normandy?" by /u/kieslowskifan .

This is not to discourage discussion. More questions, data, and debate are always welcome.