Before CoComelon and “Baby Shark” were streaming on demand, Nickelodeon was one of the few sources for content specifically aimed at kids. Millennials who grew up during the network’s “heyday” in the ...

Sandy (left) plays the guitar while Spongebob (right) sings into a microphone. Both wear marching band uniforms as lights and pyrotechnics go off in the background Image via Nickelodeon Nickelodeo n ...