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Cast
Episode Guide
- 1. Other Voices Apr 17, 1977
- Studies explore the possibility that plants may respond to people's thoughts.
- 2. Ancient Aviators Apr 24, 1977
- Markings on Peru's Nazca plain appear to be landing directions.
- 3. Strange Visitors Apr 24, 1977
- Whether Oracle Chamber, beneath New Hampshire's Mystery Hill, was builty by ancient Phoenicians.