Today, Glenn Beck had author Ben Shapiro on his radio show to discuss his new book "Primetime Propaganda: The True Hollywood Story of How the Left Took Over Your TV." We've already covered some of the early revelations from Shapiro's research here and here, which includes a founding "Sesame Street" executive admitting liberal propaganda was woven into some episodes.

During Shaprio's interview with Beck, Shapiro chatted about his astounding interviews with left-leaning celebrities who unabashedly admitted their political biases.

Shapiro told Beck, "They know the power of the medium that they're using."

Watch and listen to the interview below: