Possible Clues:

• Plant in orderly system
• Expressions of surprise about odd parts of some universe
• Emmy-winning PBS series of 1980
• '80s best-selling science book
• Sagan blockbuster of 1980
• "All that is or ever was or ever will be": Sagan
• Everything ordered had highest price with regular 25 per cent reductions
• Report of Soviet satellite's ordered system
• All out there, Greek doctors?
• PBS' most-watched series until ''The Civil War''