I am guessing someone who works at the station shared some internal documents.

I remember in the mid 90s watching Nickelodeon before school and they played an entire 30m block of commercials instead of a program. They probably lost the tape or something.

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weinzierl 6 hours ago | parent [-]

I can imagine that it used to be valuable information for advertisers or respectively for the channel as preparation for advertisers complaints.

	▲	smitelli 5 hours ago \| parent [-]
		There are definitely outside organizations whose sole responsibility is to monitor TV/radio broadcasts and nowadays even podcast sponsor breaks to ensure that ad copy is inserted as agreed. (Source: I was contracted to do some of that work for a time.)