Lear’sAll in the FamilystarRob Reinershared a deeply personal tribute that included a nod to his late fatherCarl Reiner.
Reiner directedCary Elwesin 1987’sThe Princess Bride, which Lear executive produced, and the actor posted a lovely photo onTwitter.
He wrote, “Happy Birthday to literally my oldest friend who turns 100 today! This wonderful person, @TheNormanLear , is responsible for creating the modern American sitcom and producing a little movie called #ThePrincessBride which changed my life forever. We love you Norman ❤️⚔️”
This Is Spinal Tap’sMichael McKeanwrote onTwitter: “Norman Lear, ladies & gents. 100 years if he’s a day. Cheers!”
The Facts of Life’sKim Fieldsalso paid tribute to Lear, whose Tandem Productions produced the hit ’70s sitcom that made Fields a star.
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“BOW DOWN TO KING LEAR ON HIS 100th BIRTHDAY!!” she wrote onTwitter. “Sir, you are STILL creating & making moves! We are here for all of it! All my love, hugs & kisses (and Mom’s too!) to our dear amazing iconic legend Mr. Norman Lear on this glorious birthday!! 🥰🥂🥰🥂🥰🥂”
RELATED GALLERY:Norman Lear’s Career in Photos
During Lear’s illustrious career as a television creator, writer and producer, he has perhaps best been known for developing the beloved 1970s sitcomsThe Jeffersons,Sanford and SonandAll in the Family. More recently, Lear reimaginedOne Day at a Timein a Netflix rebootand mounted alive episode ofGood Timesfor an ABC special.
Norman Lear.Jean Baptiste Lacroix/WireImage

Lear told PEOPLE in this week’s issue thathe has no intention of slowing down.
“I like getting up in the morning,” he said. “I have always liked it because I’ve always had something to do. I was born that way, and it is a great gift. As I talk about it, I accept it as a gift.”
He also shared with PEOPLE last year: “I’m sure laughterhas added time to my lifeas a result of the way it has satisfied every part of me.”
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The Connecticut native and a World War II veteran has received multiple awards for his efforts: several Emmys, one Golden Globe and one Peabody Award. He’s also a one-time Academy Award nominee.
source: people.com