796K views · 4.7K reactions | WHAT’S YOUR FUNCTION? Bob Dorough, the man behind many of the catchy “Schoolhouse Rock!” songs that taught generations of children math, history and grammar, has died; he was 94. David Muir on his legacy. https://abcn.ws/2KajhLD | ABC World News Tonight with David Muir | Facebook

1.9M views · 57K reactions | This is the only '70s-recorded Grammar Rock song that was performed by Bob Dorough. (Dorough was also in Busy Prepositions, but that was made in the '90s.) Bob Dorough provided the voices for each Lolly family member. The TV announcer is a parody of a young David Letterman. This is the only Schoolhouse Rock song with humming and a count-off! | Pop Culture Memories | Facebook