Serving the universe
Here are the first main cuts Radio 538 in The Netherlands had resung at TM Europe (back then Music & Images), based on the package The New WPLJ. These jingles were the first used on the station, as far as I could find out.
Yes, that’s right.
These jingles have been published a lot. E.g. check out https://www.youtube.com/watch?v=kzbftHhHox0
Here you can hear the very first jingle EVER on Radio 538: https://www.youtube.com/watch?v=bBN4FgSe6M0
You may also like this video that was on my timeline today.