The Nerd on Instagram: "You Can’t Do That on Television Intro | Birth of Nickelodeon Slime Take a trip back to the early days of Nickelodeon with the opening intro from You Can't Do That on Television. Originally premiering in 1979 and later becoming a defining hit on Nickelodeon, the show introduced irreverent sketch comedy, rebellious kid humor, and—most famously—the first-ever TV slime gag. The intro instantly sets the tone for the show’s chaotic energy, absurd humor, and anything-goes attitu