Credit: PBS

Joan Rivers’ new book is called I Hate Everyone … Starting with Me, but there’s one thing she doesn’t hate — PBS.

“I’ll do anything for PBS,” Rivers tells EW. “Melissa grew up on it, with Sesame Street, so I love that. It sends such good messages to the kids, still gives a positive model, all the clichés are true.”

As part of her effort to pay the network back, Rivers will be making her third guest voice appearance on the popular PBS Kids show Arthur, playing Francine’s grandmother in the upcoming June 15 episode. Rivers is one of only two repeat guest stars (the other is Lance Armstrong). Check out an exclusive shot of Rivers’ character in the episode below:

Credit: Lewis Jacobs/NBC

At 79, Rivers is keeping busier than many personalities half her age. PBS guest slots aside, she still hosts Fashion Police on E!, films the reality show Joan & Melissa: Joan Knows Best for, and is on a book tour for her latest release. How does she choose what to focus on?

“I’m a whore,” she says. “I like whatever I’m doing and I like every john I’m with. Entertainment’s so much fun, I just like the business. Whatever I’m doing in the moment, that’s what I like the best.” And she’s not slowing down anytime soon. Rivers also notes that she wants to host a late night Internet talk show. Clearly, she doesn’t hate everything but, she says, “it’s much easier to write about hate.”

While she’s interviewed nearly every big name on the red carpet and beyond, there are a few people she still has on her list, including Lady Gaga and the cast of the cult sketch comedy show Little Britain. “I’m inspired by nobody, but interested in everybody,” Rivers says.

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