When Howard dresses up as Sheldon for Halloween, Sheldon seeks retaliation at Leonard and Penny’s Halloween party. Leonard is shocked that Penny doesn’t remember their first kiss.
Sep. 24, 2007
Oct. 01, 2007
Oct. 08, 2007
Oct. 15, 2007
Oct. 22, 2007
Oct. 29, 2007
Nov. 05, 2007
Nov. 12, 2007
Mar. 17, 2008
Mar. 24, 2008
Mar. 31, 2008
Apr. 14, 2008
Apr. 21, 2008
Apr. 28, 2008
May. 05, 2008
May. 12, 2008
May. 19, 2008
Sep. 22, 2008
Sep. 29, 2008
Oct. 06, 2008
Oct. 13, 2008
Oct. 20, 2008
Nov. 03, 2008
Nov. 10, 2008
Nov. 17, 2008
Nov. 24, 2008
Dec. 08, 2008
Dec. 15, 2008
Jan. 12, 2009
Jan. 19, 2009
Feb. 02, 2009
Feb. 09, 2009
Mar. 02, 2009
Mar. 09, 2009
Mar. 16, 2009
Mar. 30, 2009
Apr. 13, 2009
Apr. 27, 2009
May. 04, 2009
May. 11, 2009
Sep. 21, 2009
Sep. 28, 2009
Oct. 05, 2009
Oct. 12, 2009
Oct. 19, 2009
Nov. 02, 2009
Nov. 09, 2009
Nov. 16, 2009
Nov. 23, 2009
Dec. 07, 2009
Dec. 14, 2009
Jan. 11, 2010
Jan. 18, 2010
Feb. 01, 2010
Feb. 08, 2010
Mar. 01, 2010
Mar. 08, 2010
Mar. 22, 2010
Apr. 12, 2010
May. 03, 2010
May. 10, 2010
May. 17, 2010
May. 24, 2010
Sep. 23, 2010
Sep. 30, 2010
Oct. 07, 2010
Oct. 14, 2010
Oct. 21, 2010
Oct. 28, 2010
Nov. 04, 2010
Nov. 11, 2010
Nov. 18, 2010
Dec. 09, 2010
Dec. 16, 2010
Jan. 06, 2011
Jan. 20, 2011
Feb. 03, 2011
Feb. 10, 2011
Feb. 17, 2011
Feb. 24, 2011
Mar. 10, 2011
Mar. 31, 2011
Apr. 07, 2011
Apr. 28, 2011
May. 05, 2011
May. 12, 2011
May. 19, 2011
Sep. 22, 2011
Sep. 22, 2011
Sep. 29, 2011
Oct. 06, 2011
Oct. 13, 2011
Oct. 20, 2011
Oct. 27, 2011
Nov. 03, 2011
Nov. 10, 2011
Nov. 17, 2011
Dec. 08, 2011
Jan. 12, 2012
Jan. 19, 2012
Jan. 26, 2012
Feb. 02, 2012
Feb. 09, 2012
Feb. 16, 2012
Feb. 23, 2012
Mar. 08, 2012
Mar. 29, 2012
Apr. 05, 2012
Apr. 26, 2012
May. 03, 2012
May. 10, 2012
Sep. 27, 2012
Oct. 04, 2012
Oct. 11, 2012
Oct. 18, 2012
Oct. 25, 2012
Nov. 01, 2012
Nov. 08, 2012
Nov. 15, 2012
Nov. 29, 2012
Dec. 06, 2012
Dec. 13, 2012
Jan. 03, 2013
Jan. 10, 2013
Jan. 31, 2013
Feb. 07, 2013
Feb. 14, 2013
Feb. 21, 2013
Mar. 07, 2013
Mar. 14, 2013
Apr. 04, 2013
Apr. 25, 2013
May. 02, 2013
May. 09, 2013
May. 16, 2013
Sep. 26, 2013
Sep. 26, 2013
Oct. 03, 2013
Oct. 10, 2013
Oct. 17, 2013
Oct. 24, 2013
Nov. 07, 2013
Nov. 14, 2013
Nov. 21, 2013
Dec. 05, 2013
Dec. 12, 2013
Jan. 02, 2014
Jan. 09, 2014
Jan. 30, 2014
Feb. 06, 2014
Feb. 27, 2014
Mar. 06, 2014
Mar. 13, 2014
Apr. 03, 2014
Apr. 10, 2014
Apr. 24, 2014
May. 01, 2014
May. 08, 2014
May. 15, 2014
Sep. 22, 2014
Sep. 22, 2014
Sep. 29, 2014
Oct. 06, 2014
Oct. 13, 2014
Oct. 20, 2014
Oct. 30, 2014
Nov. 06, 2014
Nov. 13, 2014
Nov. 20, 2014
Dec. 11, 2014
Jan. 08, 2015
Jan. 29, 2015
Feb. 05, 2015
Feb. 19, 2015
Feb. 26, 2015
Mar. 05, 2015
Mar. 12, 2015
Apr. 02, 2015
Apr. 09, 2015
Apr. 16, 2015
Apr. 23, 2015
Apr. 30, 2015
May. 07, 2015
Sep. 21, 2015
Sep. 28, 2015
Oct. 05, 2015
Oct. 12, 2015
Oct. 19, 2015
Oct. 26, 2015
Nov. 05, 2015
Nov. 12, 2015
Nov. 19, 2015
Dec. 10, 2015
Dec. 17, 2015
Jan. 07, 2016
Jan. 14, 2016
Feb. 04, 2016
Feb. 11, 2016
Feb. 18, 2016
Feb. 25, 2016
Mar. 10, 2016
Mar. 31, 2016
Apr. 07, 2016
Apr. 21, 2016
Apr. 28, 2016
May. 05, 2016
May. 12, 2016
Sep. 19, 2016
Sep. 26, 2016
Oct. 03, 2016
Oct. 10, 2016
Oct. 17, 2016
Oct. 27, 2016
Nov. 03, 2016
Nov. 10, 2016
Nov. 17, 2016
Dec. 01, 2016
Dec. 15, 2016
Jan. 05, 2017
Jan. 19, 2017
Feb. 02, 2017
Feb. 09, 2017
Feb. 16, 2017
Feb. 23, 2017
Mar. 09, 2017
Mar. 30, 2017
Apr. 06, 2017
Apr. 13, 2017
Apr. 27, 2017
May. 04, 2017
May. 11, 2017
Sep. 25, 2017
Oct. 02, 2017
Oct. 09, 2017
Oct. 16, 2017
Oct. 23, 2017
Nov. 02, 2017
Nov. 09, 2017
Nov. 16, 2017
Nov. 30, 2017
Dec. 07, 2017
Dec. 14, 2017
Jan. 04, 2018
Jan. 11, 2018
Jan. 18, 2018
Feb. 01, 2018
Mar. 01, 2018
Mar. 08, 2018
Mar. 29, 2018
Apr. 05, 2018
Apr. 12, 2018
Apr. 19, 2018
Apr. 26, 2018
May. 03, 2018
May. 10, 2018
Sep. 24, 2018
Sep. 27, 2018
Oct. 04, 2018
Oct. 11, 2018
Oct. 18, 2018
Oct. 25, 2018
Nov. 01, 2018
Nov. 08, 2018
Nov. 15, 2018
Dec. 06, 2018
Jan. 03, 2019
Jan. 10, 2019
Jan. 17, 2019
Jan. 31, 2019
Feb. 07, 2019
Feb. 21, 2019
Mar. 07, 2019
Apr. 04, 2019
Apr. 18, 2019
Apr. 25, 2019
May. 02, 2019
May. 09, 2019
May. 16, 2019
May. 16, 2019
