ScreenRant has a sensational list of the best TV show theme songs of the 2000’s, including . I especially enjoyed it because so many of today’s shows have all but jettisoned the idea of an opening theme. I still love some of the classics.

The theme from “Gilligan’s Island” sets the scene perfectly, giving us the background and introducing us to the characters. (Later season versions mentioned the professor and Mary Ann, too.)

Of course, I have a special attachment to that one!

As I have explained before, “The Dick Van Dyke Show” was the only opening credit sequence to have two variations — you never knew if he was going to trip over the ottoman or not.

The whistled theme music and the father and son walking to the fishin’ hole immediately transport us to Mayberry.

This theme song became a top 40 hit for the Rembrandts.

If a junkyard played music, this is what it would sound like. In an episode of “Will and Grace,” Will and Jack do a funny little dance number to this song.

Some shows were not as memorable as their theme songs. Valerie Bertinelli’s then-husband Eddie Van Halen composed the theme for her short-lived series, “Sydney.” David Clayton-Thomas of Blood, Sweat, and Tears performed the theme song for the Saturday morning series, “Mugsy.” I love Sammy Davis, Jr.’s theme song for “Baretta.”

More coming soon — and I’d love to hear your favorites.