Beginning in the 1990s, McKenna hosted a series of shows based off his hypnotism and later signed a deal with the Discovery Channel. It is still the largest television deal to date with a British personality. He has become one of the most successful non-fiction booksellers with his titles I Can Make You Thin and I Can Make You Happy, among others. He possesses two doctorate degrees after attending St. Ignatius Secondary School in London and East Hertfordshire College in his younger years as well as LaSalle University in Louisiana and the International Management Centres Association. McKenna’s most prominent influence has been Richard Bandler.