Crosswords with Friends April 27 2020 Alan who hosted PBS's Scientific American Frontiers for 12 years General knowledge plays a crucial role in solving crosswords, especially the Alan who hosted PBS's Scientific American Frontiers for 12 years crossword clue which has appeared on April 27 2020 Crosswords with Friends puzzle. The answer we have shared for Alan who hosted PBS's Scientific American Frontiers for 12 years has a total of 4 letters but also has other possible answers listed below the main one. Read More...