Over two decades ago, WGBH senior executive producer Carol Greenwald reached out to children’s book author Marc Brown and said, “We’d love to make a series out of Arthur.”

Little did she or anyone know that the long-running kids’ series would take on a second life on social media as an uber-popular meme, especially for the best basketball player on the planet.

But one thing is certain: Greenwald loves the existence of Arthur memes and was excited to see LeBron James and his teammates use them.

“I’m thrilled that people think Arthur is meaningful to them and so meaningful that they’d would want to use it to express their thoughts, feelings and to make a jokes,” Greenwald told For The Win on Wednesday. “I’m delighted.”

She was first alerted to the rise of the meme in back in the summer of 2016 while on vacation — her son brought it up to her. And when James dropped his “Mood …” Instagram post earlier this month, a Google alert told her right away that the meme had a new, extremely popular user.

And it might net James another job.

Greenwald said they’ve just reached out to James’s agent and she’d love to have him guest star, something that’s possible given that the show has featured real-life celebrities like architect Frank Gehry:

https://www.youtube.com/watch?v=ea5TIpyW5Go

“LeBron is active in the Cleveland community, he has a foundation and has worked a lot with youth,” Greenwald said. “I admire that about him. He’s a great role model for kids, articulate and smart. It’s so great he’s using Arthur.”

In using the meme, he’s also — perhaps unintentionally — taught a lesson to America’s youth.

“The great thing about what he’s doing here is talking about feelings,” Greenwald pointed out. “One of the things we do is recognize kids have a range of moods and feelings, and that it’s not necessarily wrong to feel disappointed or upset. I’d love have LeBron talk to kids about that.”