For a while, they did that to the first one or two seasons of Happy Days because it played Bill Haley’s Rock Around the Clock (glued the later theme over the intro). And that was one of the reasons why that show’s earlier episodes were far superior to the later years (particularly after Ron Howard and Don Most left the show).
I remember once watching the movie “Slapshot” and they had removed all the great songs that were on the original soundtrack.
Interesting trivia that it was a royalty issue.
As for that WKRP turkey episode, that falls flat with me. Just like that turkey tossed from a helicopter, I guess. I am not getting why so many people think it was so funny.