In Search of... is a television series that was broadcast weekly from 1977 to 1982, devoted to mysterious phenomena. It was created after the success of three one-hour TV documentaries produced by creator Alan Landsburg: <br /> <br />In Search of Ancient Astronauts <br />In Search of Ancient Mysteries <br />The Outer Space Connection <br /> <br />All three featured narration by Rod Serling, who was the initial choice to host the spin-off show. After Serling's death, Leonard Nimoy was selected to be the host. <br /> <br />This Episode examines groundbreaking experiments that show the possibility that plants respond to people's thoughts. <br /> <br />Original Air Date: April 17, 1977
