Back to other TV shows, I'll add Magnum P.I.
Yeah, I thought Magnum, P.I. sounded like it could be a GS theme in a way as well!
The first version by Ian Freebairn Smith does sound like it could be used as b/g music for a gs theme.
But the Mike Post theme, even more as gs theme!
Speaking of themes by Mike Post...
I think to some extent his theme song from L.A Law could sound like a bit of a gs theme and his theme song from Hill Street Blues sounds like it could also be bg music as well, too.
And as for the NBa on NBC theme, I kinda like it, but it won't quite as much hold a candle to the NBA on CBS theme in the '80s, though. But, the NBA on NBC theme lives on in my Chicago News Sports whenever they're showing highlights of the Bulls games, though.