Research Unit: Episode list
S1.E1 - Episode 1
Thursday, May 11, 2006
★
7
S1.E2 - Episode 2
Thursday, May 11, 2006
★
8
S1.E3 - Episode 3
Thursday, May 18, 2006
★
8
S1.E4 - Episode 4
Thursday, May 18, 2006
★
7
S2.E1 - Episode 1
Thursday, September 6, 2007
★
8
S2.E2 - Episode 2
Thursday, September 6, 2007
★
7
S2.E3 - Episode 3
Thursday, September 13, 2007
★
8
S2.E4 - Episode 4
Thursday, September 13, 2007
S2.E5 - Episode 5
Thursday, September 20, 2007
★
9
S2.E6 - Episode 6
Thursday, September 20, 2007
★
8
S2.E7 - Episode 7
Thursday, September 27, 2007
★
8
S2.E8 - Episode 8
Thursday, September 27, 2007
★
9
S3.E1 - Episode 1
Thursday, November 20, 2008
★
8
S3.E2 - Episode 2
Thursday, November 20, 2008
★
8
S3.E3 - Episode 3
Thursday, November 27, 2008
★
7
S3.E4 - Episode 4
Thursday, November 27, 2008
★
8
S3.E5 - Episode 5
Thursday, December 4, 2008
★
8
S3.E6 - Episode 6
Thursday, December 4, 2008
★
8
S3.E7 - Episode 7
Thursday, January 22, 2009
★
8
S3.E8 - Episode 8
Thursday, January 22, 2009
★
9
S3.E9 - Episode 9
Thursday, January 29, 2009
★
7
S3.E10 - Episode 10
Thursday, January 29, 2009
★
8
S4.E1 - Episode 1
Thursday, September 10, 2009
★
7
S4.E2 - Episode 2
Thursday, September 10, 2009
★
8
S4.E3 - Episode 3
Thursday, September 17, 2009
★
8
S4.E4 - Episode 4
Thursday, September 17, 2009
★
9
S4.E5 - Episode 5
Thursday, September 24, 2009
★
8
S4.E6 - Episode 6
Thursday, September 24, 2009
★
8
S4.E7 - Episode 7
Thursday, October 1, 2009
★
9
S4.E8 - Episode 8
Thursday, October 1, 2009
★
8
S4.E9 - Episode 9
Thursday, February 25, 2010
★
8
S4.E10 - Episode 10
Thursday, February 25, 2010
★
7
S4.E11 - Episode 11
Thursday, March 4, 2010
★
8
S4.E12 - Episode 12
Thursday, March 4, 2010
★
8
S4.E13 - Episode 13
Thursday, March 11, 2010
★
7
S4.E14 - Episode 14
Thursday, March 11, 2010
★
9
S5.E1 - Episode 1
Thursday, March 10, 2011
★
8
S5.E2 - Episode 2
Thursday, March 10, 2011
★
9
S5.E3 - Episode 3
Thursday, March 17, 2011
★
7
S5.E4 - Episode 4
Thursday, March 17, 2011
★
8
S5.E5 - Episode 5
Thursday, March 24, 2011
★
7
S5.E6 - Episode 6
Thursday, March 24, 2011
★
8
S5.E7 - Episode 7
Thursday, March 31, 2011
★
8
S5.E8 - Episode 8
Thursday, March 31, 2011
★
7
S5.E9 - Episode 9
Thursday, April 7, 2011
★
8
S5.E10 - Episode 10
Thursday, April 7, 2011
★
7
S5.E11 - Episode 11
Thursday, April 14, 2011
★
8
S5.E12 - Episode 12
Thursday, April 21, 2011
★
7
S5.E13 - Episode 13
Thursday, April 28, 2011
★
8
S5.E14 - Episode 14
Thursday, April 28, 2011
★
9
S6.E1 - Episode 1
Thursday, April 26, 2012
★
8
S6.E2 - Episode 2
Thursday, April 26, 2012
★
8
S6.E3 - Episode 3
Thursday, May 3, 2012
★
7
S6.E4 - Episode 4
Thursday, May 3, 2012
★
8
S6.E5 - Episode 5
Thursday, May 10, 2012
★
8
S6.E6 - Episode 6
Thursday, May 10, 2012
★
8
S6.E7 - Episode 7
Thursday, May 17, 2012
★
7
S6.E8 - Episode 8
Thursday, May 17, 2012
★
8
S6.E9 - Episode 9
Thursday, May 24, 2012
★
8
S6.E10 - Episode 10
Thursday, May 24, 2012
★
6
S7.E1 - Episode 1
Thursday, February 28, 2013
★
9
S7.E2 - Episode 2
Thursday, February 28, 2013
★
8
S7.E3 - Episode 3
Thursday, March 7, 2013
★
9
S7.E4 - Episode 4
Thursday, March 7, 2013
★
9
S7.E5 - Episode 5
Thursday, March 14, 2013
★
9
S7.E6 - Episode 6
Thursday, March 14, 2013
★
8
S7.E7 - Episode 7
Thursday, March 21, 2013
★
8
S7.E8 - Episode 8
Thursday, March 21, 2013
★
8
S7.E9 - Episode 9
Thursday, March 28, 2013
★
8
S7.E10 - Episode 10
Thursday, March 28, 2013
★
8
S7.E11 - Episode 11
Thursday, April 4, 2013
★
9
S7.E12 - Episode 12
Thursday, April 4, 2013
★
8
S7.E13 - Episode 13
Thursday, April 11, 2013
★
7
S7.E14 - Episode 14
Thursday, April 11, 2013
★
8
S7.E15 - Episode 15
Thursday, April 18, 2013
★
8
S7.E16 - Episode 16
Thursday, April 18, 2013
★
7
S8.E1 - Episode 1
Thursday, February 27, 2014
★
8
S8.E2 - Episode 2
Thursday, February 27, 2014
★
8
S8.E3 - Episode 3
Thursday, March 6, 2014
★
9
S8.E4 - Episode 4
Thursday, March 6, 2014
★
7
S8.E5 - Episode 5
Thursday, March 13, 2014
★
8
S8.E6 - Episode 6
Thursday, March 13, 2014
★
8
S8.E7 - Episode 7
Thursday, March 20, 2014
★
7
S8.E8 - Episode 8
Thursday, March 20, 2014
★
8
S8.E9 - Episode 9
Thursday, March 27, 2014
★
7
S8.E10 - Episode 10
Thursday, March 27, 2014
★
9
S8.E11 - Episode 11
Thursday, April 3, 2014
★
9
S8.E12 - Episode 12
Thursday, April 3, 2014
★
8
S9.E1 - Episode 1
Thursday, February 5, 2015
★
8
S9.E2 - Episode 2
Thursday, February 5, 2015
★
8
S9.E3 - Episode 3
Thursday, February 12, 2015
★
7
S9.E4 - Episode 4
Thursday, February 12, 2015
★
8
S9.E5 - Episode 5
Thursday, February 19, 2015
★
9
S9.E6 - Episode 6
Thursday, February 19, 2015
★
9
S9.E7 - Episode 7
Thursday, February 26, 2015
★
8
S9.E8 - Episode 8
Thursday, February 26, 2015
★
7
S9.E9 - Episode 9
Thursday, March 5, 2015
★
7
S9.E10 - Episode 10
Thursday, March 5, 2015
★
8
S9.E11 - Episode 11
Thursday, March 12, 2015
★
7
S9.E12 - Episode 12
Thursday, March 19, 2015
★
8
S10.E1 - Episode 1
Thursday, January 28, 2016
★
8
S10.E2 - Episode 2
Thursday, January 28, 2016
★
8
S10.E3 - Episode 3
Thursday, February 4, 2016
★
7
S10.E4 - Episode 4
Thursday, February 11, 2016
★
8
S10.E5 - Episode 5
Thursday, February 18, 2016
★
8
S10.E6 - Episode 6
Thursday, February 25, 2016
★
8
S10.E7 - Episode 7
Thursday, February 25, 2016
★
7
S10.E8 - Episode 8
Thursday, March 3, 2016
★
8
S10.E9 - Episode 9
Thursday, March 3, 2016
★
7
S10.E10 - Episode 10
Thursday, March 10, 2016
★
7
S10.E11 - Episode 11
Thursday, March 17, 2016
★
8
S10.E12 - Episode 12
Thursday, March 24, 2016
★
7
S10.E13 - Episode 13
Thursday, March 31, 2016
★
9
S11.E1 - Episode 1
Thursday, January 5, 2017
★
8
S11.E2 - Episode 2
Thursday, January 5, 2017
★
7
S11.E3 - Episode 3
Thursday, January 19, 2017
★
7
S11.E4 - Episode 4
Thursday, February 2, 2017
★
7
S11.E5 - Episode 5
Thursday, February 9, 2017
★
8
S11.E6 - Episode 6
Thursday, February 16, 2017
★
8
S11.E7 - Episode 7
Thursday, February 23, 2017
★
9
S11.E8 - Episode 8
Thursday, March 2, 2017
★
9
S11.E9 - Episode 9
Thursday, March 9, 2017
★
9
S11.E10 - Episode 10
Thursday, March 16, 2017
★
7
S11.E11 - Episode 11
Thursday, March 23, 2017
★
7
S11.E12 - Episode 12
Thursday, March 30, 2017
★
8
S11.E13 - Episode 13
Thursday, April 6, 2017
★
8
S11.E14 - Episode 14
Thursday, April 13, 2017
★
8
S12.E1 - Episode 1
Thursday, March 1, 2018
★
9
S12.E2 - Episode 2
Thursday, March 1, 2018
★
8
S12.E3 - Episode 3
Thursday, March 8, 2018
★
7
S12.E4 - Episode 4
Thursday, March 22, 2018
★
8
S12.E5 - Episode 5
Thursday, March 15, 2018
★
8
S12.E6 - Episode 6
Thursday, March 15, 2018
★
8
S12.E7 - Episode 7
Thursday, March 22, 2018
★
8
S12.E8 - Episode 8
Thursday, March 22, 2018
★
8
S12.E9 - Episode 9
Thursday, March 29, 2018
★
7
S12.E10 - Episode 10
Thursday, March 29, 2018
★
7
S12.E11 - Episode 11
Thursday, April 5, 2018
★
9
S12.E12 - Episode 12
Thursday, April 12, 2018
★
9
S12.E13 - Episode 13
Thursday, April 19, 2018
★
9
S12.E14 - Episode 14
Thursday, April 26, 2018
★
9
S13.E1 - Episode 1
Thursday, March 7, 2019
★
8
S13.E2 - Episode 2
Thursday, March 7, 2019
★
9
S13.E3 - Episode 3
Thursday, March 14, 2019
★
8
S13.E4 - Episode 4
Thursday, March 14, 2019
★
8
S13.E5 - Episode 5
Thursday, March 28, 2019
★
9
S13.E6 - Episode 6
Thursday, March 28, 2019
★
7
S13.E7 - Episode 7
Thursday, April 4, 2019
★
9
S13.E8 - Episode 8
Thursday, April 4, 2019
★
8
S13.E9 - Episode 9
Thursday, April 11, 2019
★
7
S13.E10 - Episode 10
Thursday, April 11, 2019
★
8
S13.E11 - Episode 11
Thursday, April 25, 2019
★
7
S13.E12 - Episode 12
Thursday, April 25, 2019
★
7
S13.E13 - Episode 13
Thursday, May 2, 2019
★
8
S13.E14 - Episode 14
Thursday, May 2, 2019
★
9
S14.E1 - Episode 1
Thursday, January 28, 2021
★
9
S14.E2 - Episode 2
Thursday, February 4, 2021
★
9
S14.E3 - Episode 3
Thursday, February 11, 2021
★
9
S14.E4 - Episode 4
Thursday, February 18, 2021
★
8
S14.E5 - Episode 5
Thursday, February 25, 2021
★
8
S14.E6 - Episode 6
Thursday, March 4, 2021
★
8
S14.E7 - Episode 7
Thursday, March 11, 2021
★
7
S14.E8 - Episode 8
Thursday, March 11, 2021
★
8
S15.E1 - Episode 1
Saturday, April 16, 2022
★
8
S15.E2 - Episode 2
Saturday, April 16, 2022
★
9
S16.E1 - Episode 1
Thursday, February 1, 2024
★
8
S16.E2 - Episode 2
Thursday, February 1, 2024
★
9
S16.E3 - Episode 3
Thursday, September 5, 2024
★
8
S16.E4 - Episode 4
Thursday, September 5, 2024
★
8
S16.E5 - Episode 5
Thursday, October 23, 2025
★
8
S16.E6 - Episode 6
Thursday, October 23, 2025
★
8