Final answer:
The Ed Sullivan Show introduced more than 10,000 performers to the American market before it was canceled in 1971.
Step-by-step explanation:
The television program that introduced more than 10,000 performers to the American market before it was canceled in 1971 was The Ed Sullivan Show. This variety show, hosted by Ed Sullivan, featured a wide range of acts including musical performances, comedy acts, and dance routines. It was a popular show that provided a platform for many artists to gain exposure and reach a vast audience.
Learn more about The Ed Sullivan Show and its impact on introducing performers to the American market