The money is made now from using songs in movie and TV soundtracks.
That's why a lot of TV shows do not get released on DVD or Blu-ray. The music rights make it too expensive to do so.
Katrina of Katrina and the Waves the song Walking on Sunshine. Even though she is not credited solely with writing it she has most of the rights to it. Song gets used in a movie every 10 years or so a commercial every 5-7 years. She has almost made a living off that one song.
“ The money is made now from using songs in movie and TV soundtracks.”
Streaming services too - worldwide.