Oleg, you'll be my hero forever if you can do this:

[robtek]

@nearmiss
"There is no way you would have heard entertainment radio in the air during WW2."

Thats is not so, especially in flight it is easy to receive am radio-stations over a few 100 km.
This was used for navigation in ww2! I.e. "Soldatensender Belgrad" BBC London and quite a few Radio Stations where online during the war and where received with adf equipment in Bombers and other planes equipped with adf receivers.