Table:
text: Supernatural (U.S. TV series)
Ratings
Ratings
Season Network Timeslot Season_premiere Season_finale TV_season Rank_Rank_denotes_the_relative_position_of_the_television_series_with_respect_to_other_prime_time_shows_on_the_CW_FOX_NBC_CBS_and_ABC_ Viewers_in_millions Rating_Rating_is_the_percentage_of_all_households_tuned_into_the_program_
1 The WB Tuesday 9/8c September 13, 2005 May 4, 2006 2005–2006 #165 3.81 1.4
1 The WB Thursday 9/8c September 13, 2005 May 4, 2006 2005–2006 #165 3.81 1.4
2 The CW Thursday 9/8c September 28, 2006 May 17, 2007 2006–2007 #216 3.14 1.1
3 The CW Thursday 9/8c October 4, 2007 May 15, 2008 2007–2008 #187 2.74 1.0
5 The CW Thursday 9/8c September 10, 2009 May 13, 2010 2009–2010 #125 2.64 1.2
6 The CW Friday 9/8c September 24, 2010 May 20, 2011 2010–2011 #134 2.47 1.1

Question: Among US TV series, which channel has gained 2.74 million viewers for Supernatural?