The Radio of November (until 0:50) and December (after 0:50)

So I "just" heard something the radio while driving home and it occurred to me that radiostations seem to have a ritual in around middle of November – at least where I live, but i get a feeling this is a global "issue". This inspired me to create this audiovisual (more audio than visual) joke.

Everything relevant happens in the first minute, what follows is for the "enthusiasts".