I was just about to mention Westerns. Hitler's literary Wagner was Karl May, author of the "Winnetou" stories set in the American West. Westerns are surprisingly popular in Germany, but the fact that they're set in the United States is obviously a potential problem. On the other hand, Westerns tend to have a simple moral message of good guys in white hats and bad guys in black hats. My guess: the Reichsfernsehkammer (the state censor for television) would permit Westerns on the grounds that the fictional America being portrayed is not the "Roosevelt-U.S.A." (Aside: I think Nazi doctrine with respect to the UK and USA would be that the people were fine Aryans who would have fought Communism with Germany if it hadn't been for the plutocrat-imperialist warmongers Churchill and Roosevelt.) Setting Westerns in the Russian steppes would be a possibility, but then they'd be Easterns.
I thought of Little Sandman as well. There'd be something like that, certainly. I imagine children's programming would be very gender-role-based (wartime adventure stories for boys, Little House on the Prairie stuff for girls). It wouldn't really be necessary to indoctrinate children through television, though. The Hitler Youth and League of German Girls would amply take care of that.