7 things you need to know about the talented 9-year-old starring on 'Young Sheldon'

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CBS aired a preview of "Young Sheldon" Monday night. It's shaping up to be for better or worse one of their most anticipated shows of the year.

The preview had nearly 17 million viewers, making it the biggest comedy premiere in four years, according to The Hollywood Reporter.

Set decades earlier than "The Big Bang Theory," the show follows the youth of a 9-year-old Sheldon Cooper going to high school. Jim Parsons, who plays, uh, "old" Sheldon in "The Big Bang Theory," narrates the episodes.

At the heart of the show is a 9-year-old actor who's a bit of a prodigy himself. He's not a physicist, but Iain Armitage already has an impressive resume. Here are seven things you need to know about him.

He has a vlog where he's a theater critic.

IainLovesTheatre YouTube

For the past few years, Armitage has been running a YouTube channel where he discusses different plays and reviews them. He also reprises some songs from the musicals he watches. He goes under the moniker "IainLovesTheatre."

"I had to wait for seven hours to get tickets," he said of "Hamilton," which he caught at an early run at the Public Theater. "It is one of the most tremendous, amazing, fantastic better than fantastic shows ever."

On his channel, he also reviews magic shows.

He wants to be a magician when he grows up.

IainLovesTheatre YouTube

Acting is nice and all, but Armitage wants to be the next David Copperfield or Criss Angel.

"I have a tablet filled with magic tricks, to the very brim," he said in an interview with Vulture. "I love magic. I think I want to be a magician in Las Vegas when I grow up."

Both of his parents are theater people.

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One of the reasons why Armitage is able to see so many shows is because both of his parents work in theater. He's the son of Tony-nominated actor Euan Morton and the Broadway producer Lee Armitage.

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