Steven Johnson Steven Johnson talks about Joseph Priestley, the man who first realized that plants actually create the oxygen we breathe. Details Casts Galleries Posters Season Lists Title Steven Johnson Genres News Comedy Release Date 2009-03-05 Episode Runtime 00 Hours 24 Minutes Season Number 5 Episode Number 32 Production Companies Busboy Productions, Spartina Productions Stephen Colbert... Self - Host... Original Size (1920x1080) Original Size (1280x720) Original Size (2000x3000) Season 1 32 Episode(s) 2005-10-17 Season 2 161 Episode(s) 2006-01-09 Season 3 138 Episode(s) 2007-01-08 Season 4 160 Episode(s) 2008-01-07 Season 5 161 Episode(s) 2009-01-05 Season 6 161 Episode(s) 2010-01-04 Season 7 124 Episode(s) 2011-01-03 Season 8 155 Episode(s) 2011-10-03 Season 9 155 Episode(s) 2012-10-01 Season 10 160 Episode(s) 2013-09-30 Season 11 40 Episode(s) 2014-09-29