ETC Backgrounds

August 23, 2004-December 11, 2009
Main article: ETC Backgrounds (2004-2009)

December 12, 2009-July 26, 2014
Main article: ETC Backgrounds (2009-2014)

July 27, 2014-October 16, 2016
Main article: ETC Backgrounds (2014-2016)

October 16, 2016-present
Main article: ETC Backgrounds (2016-present)