You know, if you are going to roast someone for a gaffe, you should at least get your facts straight, yourself.
The stock market crash occurred in 1929. The Great Depression, followed and lasted throughout the thirties.
FDR was actually Governor of New York at the time of the stock market crash. It was the Governor of New York (i.e. Roosevelt), not the President (e.g. Hoover) that had the legal ability to curb the excesses of Wall Street. It was Roosevelt that was dealing directly with Wall Street during the crash. He was the Governor of the most populous, the state that was the home of Wall Street.
When FDR was elected President in 1932, the Great Depression was at its worst. In his inaugural address, he made one of the most famous comments in U.S. history, "the only thing we have to fear is fear itself."
So, Biden did slip-up but it was not nearly as damning as people say. For instance, his mention of television was questionable.
However, you again make a mistake there. The modern television was invented in the 1920s, before the stock market crash. Variations of the modern television were first publiclly demonstrated in 1927, by the likes of Milo Farnsworth, Herbert Ives, and John Logie Baird--so a good two years before the stock market crash.
