I would further suggest that Winfrey appears to cater to McGraw as well... He first appeard on her show as a relationship expert :


Oprah Winfrey and the Dr. Phil show
In 1995, Oprah Winfrey hired McGraw's legal consulting firm CSI to prepare her for the Amarillo Texas beef trial. Winfrey was so impressed with McGraw that she thanked him for her victory in that case, which ended in 1998. Soon after, she invited him to appear on her show. His appearance proved so successful that he began appearing weekly as a "Relationship and Life Strategy Expert" on Tuesdays starting in April 1998.

The next year, McGraw published his first best-selling book, Life Strategies, some of which was taken from the "Pathways" seminar.[7] In the next four years, McGraw published three additional best-selling relationship books, along with workbooks to complement them.

As of September 2002, McGraw formed Peteski Productions[19] and launched his own syndicated daily television show, Dr. Phil, produced by Winfrey's Harpo Studios. The format is an advice show, where he tackles a different topic on each show, offering advice for his guests' troubles.