After 4½ decades the on air, Grover shared on Tuesday the secret to staying young on "Sesame Street": blue dye.
"Monsters age a little bit differently than TV hosts," Grover told CNBC's Becky Quick, co-host of "Squawk Box".
For Sesame Street Production, the studio behind the beloved show, one of the secrets to staying fresh has been embracing digital media, Vice President Nadine Zylstra added. "The business models of it are evolving and as digital shifts, we all have to be thinking about how we adapt with that, and I think it's a really exciting time."
Grover and Zylstra appeared on the "Squawk Box" set, along with Elmo to talk about the future of "Sesame Street," which celebrated its 45th anniversary Monday.
"Sesame Street" and the franchise have moved far beyond their television roots. Half of viewers watch it in digital formats, and the YouTube channel has more than 1 million subscribers and 1.5 billion views.