This is the syndicated version of the theme that I remember watching as a kid. Most of the syndicated versions I've seen are similar but with the harmonica part at the end removed.
I remember this version which aired on my local FOX station in Pittsburgh during the early 90s, I liked the short harmonica version. I have not heard this version since it aired back in the early 90s. I always wanted to hear it but could never find it on you tube.