BTW, there should be no comma between “neighborhood” and “Spiderman.” The lyrics are a play on the stereotypical “Ask your friendly neighborhood grocer/butcher/pharmacist/whatever about product X” used in old commercials.
But there seems to be no measurable crossover between Roger Ramjet and radio drama. By the time Roger Ramjet came to air, almost all radio drama was dead and passé, other than YA novel readings on proto-NPR and much later offerings on the CBS Radio Mystery Theater.
Our “kids’ version” of the theme song:
[insert name of person to be targeted here] he’s our man, hero of our nation,
The only thing that’s wrong with him, is mental retardation.
Wikipedia dates the Howdy Doody Show as 1947, which must be very close to the introduction of TV in the USA. I don’t have an problem seeing a crossover between children’s radio programming and children’s TV programming: there was certainly a crossover between adult radio programming and adult TV programming.
For direct crossover, radio to RR, I don’t think 15 years is too long. And RR in particular is full of adult themes: it’s hard to imagine that the people who wrote it weren’t grown up adults who’d listened to radio shows as kids.
Really, I see Roger Ramjet more as riffing offa Moose&Squirrel, which also had some sly adultry going on in it. For that matter, look at Looney Toons. The broad-based humor that works on multiple levels has been going on for-freakin-ever. It seems like only Disney cleaved closely to Haysianism, rarely wandering into subtlety.