It was on this day in 1978, (January 28) when the Doobie Brothers starred on the hit TV series What's Happening. The famous episode titled "Doobie Or Not Doobie" focused on the scourge of concert bootlegging, as Rerun gets caught redhanded. The episode also created the famous catchphrase "Which Doobie you be?" There's even a Facebook page dedicated to the episode
Watch a few scenes above & below