We're gonna turn it on
We're gonna give you the power
We're gonna turn the dark of night into the brightest light in a whole new way...
There were lots of famous people on the Electric Company. Rita Moreno was the one that hollered "Hey you guys!" and Morgan Freeman was Easy Reader. Bill Cosby was in a sketch where he kept flubbing the line, "Superguy is a meatball." Also, the songs Silent E and L-Y were both performed by Tom Lehrer.
It's funny: there's a new TV commercial that spoofs the bit on Electric Company where two silhouettes spit out parts of words to one another, then the complete word. In the commercial, I remember that they keep saying "Boing," but I can't for the life of me remember what the commercial is for. The frightening thing is how specific the target demographic must be for this ad: you have to be of Electric Company-watching age. How slick is that?
I was pretty young when the show was on. It was several years after it ended before I got the joke in "Fargo North, Decoder."
I think that counting song is actually from Sesame Street. You can still find it there, sometimes.