The internet has enabled me to research something I noticed over 20 years ago. I remember watching an ITV mini-series in the 1980s that had a dramatic and memorable theme tune. Soon after, Pet Shop Boys released their massive hit "It's a Sin" and I was amazed.
To hear why, first listen to some of "It's a Sin" from 1987:
Now listen to the theme tune of that mini-series, "If Tomorrow Comes", composed by Nick Bicât:
That was broadcast in 1986, the year before "It's a Sin" was released.
I'm no musician, but they sound surprisingly the same to me.