Simplify the following text for a Grade 8 native English-speaking person.
Original: Phillip Calvin McGraw ( born September 1 , 1950 ) , best known as Dr. Phil , is an American television personality , psychologist and author who is the host of the psychology themed television show Dr Phil show .
Simplified: Phillip Calvin McGraw ( born September 1 , 1950 ) , best known as Dr. Phil , is an American television personality , author , psychologist , and the host of the television show Dr. Phil , which debuted in 2002 .