Captain Video's Decoder - To interpret messages sent to the TV members of the Video Rangers who watched the live action children's program CAPTAIN VIDEO AND HIS VIDEO RANGERS/DUM/1949-55, members used a "premium" secret ray gun with a flashlight" that shot a beam of light from its barrel. The light beam shot through a lumaglo card revealing various symbols based on the "planets." Each planet had a different meaning: The following is a breakdown of each message: 

Planet Symbol            Message Decoded Mercury  Emergency! Summon all forces.   Venus All clear. Situation under control.   Mars Come to my aid!   Earth I am on a secret mission.  Make no attempt to contact me.   Jupiter Arrange for meeting and advise me of time and place.   Uranus Disregard previous message and wait for new instructions. Neptune Make no move until I return.   Pluto  Follow me to secret meeting place. I have discovered the enemy's plan.