If you are singing the song that goes to this animation right now you are one of my people.
Holy crap! I just saw the top two gifs and turned to Kelly and said, “Oh my god! Sean posted the Onetwothree FOURfive sixseveneightnineten eleven twelve! thingy from The Electric Company!!!!
Pretty sure this was Sesame Street, not electric company. Though I could be wrong. But I remember it.