Simplify the following text for a Grade 8 native English-speaking person.
Original: He is known in the United Kingdom and in the United States for his role as a talent judge on TV shows such as Pop Idol , The X Factor , Britain 's Got Talent , and American Idol .
Simplified: He is well known as a judge on the television programs such as Pop Idol , The X Factor , American Idol and Britain 's Got Talent .