To avoid the Raiders of the Lost Ark problem, Melissa Rivers donated her mother's joke collection to the National Comedy Center so it would be on display and accessible. The New York-based museum is also home to the archives of George Carlin and Carl Reiner.

Here's the Wikipedia page about Carl Reiner.

Here's his Twitter account.

From his Wikipedia page:

Carl Reiner (March 20, 1922 – June 29, 2020) was an American actor, comedian, director, screenwriter, and author whose career spanned seven decades. During the early years of television comedy from 1950 to 1957, he acted on and contributed sketch material for Your Show of Shows and Caesar's Hour, starring Sid Caesar. In the 1960s, Reiner was best known as the creator, producer, writer, and actor on The Dick Van Dyke Show.

Reiner formed a comedy duo with Mel Brooks in "2000 Year Old Man" and acted in films such as It's a Mad, Mad, Mad, Mad World (1963), The Russians Are Coming, the Russians Are Coming (1966), and the Ocean's film series (2001–2007). He co-wrote and directed some of Steve Martin's first and most successful films, including The Jerk (1979), and also directed notable comedies such as Where's Poppa? (1970), Oh, God! (1977), and All of Me (1984).

Reiner was the recipient of many awards and honors, including 11 Emmy Awards, one Grammy Award, and the Mark Twain Prize for American Humor. He was inducted into the Television Hall of Fame in 1999. He was the father of actor and director Rob Reiner, author Annie Reiner, and artist Lucas Reiner, and the grandfather of Tracy Reiner.

From the Wikipedia page:

Your Show of Shows is a live 90-minute variety show that was broadcast weekly in the United States on NBC from February 25, 1950, through June 5, 1954, featuring Sid Caesar and Imogene Coca. Other featured performers were Carl Reiner, Howard Morris, Bill Hayes, baritone Jack Russell (singer), Judy Johnson, The Hamilton Trio and the soprano Marguerite Piazza. José Ferrer made several guest appearances on the series.

In 2002, Your Show of Shows was ranked #30 on TV Guide's 50 Greatest TV Shows of All Time.[1] In 2013, it was ranked #37 on TV Guide's 60 Best Series of All Time.[2]

In 2013, Your Show of Shows was ranked #10 on Entertainment Weekly’s Top 100 Greatest TV Shows of All Time.