"After a while, you start to go on automatic pilot," he explained on "Oprah" on Thursday. "Too many times, I was sitting there [at the judges' table] bored. The audience deserves more than that … and I can't hide when I'm bored."
"I actually like doing it, funny enough," Simon said. "I remember ['Idol' Season 3 winner] Fantasia singing 'Summertime,' and for three minutes, I lost myself. I like the buzz it creates. You want to be part of something people are talking about. I love that feeling."
The new show, he explained, will offer a few rules changes from "Idol" that he thinks will liven things up.
"There's no upper age limit," he said. "Singing groups can enter the show. I have no idea whether it's going to work or not, but I'll put its success and failure on whether we can find a star."
While he may be wrapping up "Idol," the sharp-tongued star said his judging skills are as good as ever.
"I do trust my judgment as somebody who can spot a potential star," he said.
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