Best TV Theme Songs of the 1970's

Doesn't matter what age you are--these shows have been on rerun and streaming since the 1970's, and the theme songs are so catchy, some of them became bigtime radio hits.....among the top twenty in this story, there's the theme from "All in the Family," which was sung by the two lead actors, Carroll O'Connor and Jean Stapleton, because show creator Norman Lear was trying to save money on a tight budget...the theme for "Welcome Back Kotter" was sung by singer for the "Lovin' Spoonful," John Sebastian, and was his biggest hit single of his solo music career...story goes he wrote and sang it for producers after watching the show pilot, and they liked it so much, they changed the name of the show from "Kotter" to "Welcome Back Kotter"...here's lots about themes like "WKRP in Cincinnati," ""Taxi," "Sanford and Son," "Three's Company," and a bunch more: https://ultimateclassicrock.com/best-70s-tv-theme-songs/