"Panic Broadcast" refers to a radio program that aired on October 30, 1938, and is famously known for its realistic portrayal of an alien invasion. The broadcast, directed by Orson Welles, was an adaptation of H.G. Wells' novel "The War of the Worlds." Many listeners, unaware it was a fictional drama, believed the events were real, leading to widespread panic. The program was significant in demonstrating the power of media and how it can influence public perception. It highlighted the potential for misinformation and the importance of critical listening, especially during times of crisis or uncertainty.