TV Dancing with the Stars - Season 20 Episode 4 : Week 4: Most Memorable Year Dancing with the Stars - Season 20 Episode 4 : Week 4: Most Memorable Year 6.1/10 by 119 users Each couple performed to a song of the celebrities choosing that encompasses an unforgettable time, or truly incredible experience in their life. Details Casts Posters Images Title Dancing with the Stars - Season 20 Episode 4 : Week 4: Most Memorable Year Alternative Titles 星随舞动, Dancing with the Stars (2005), Dancing with the Stars (US) First Air Date 2005-06-01 Last Air Date 2025-10-07 Number of Episodes 510 Number of Seasons 34 Genres Family, Reality, Networks ABC, Disney+, Casts Alfonso Ribeiro, Julianne Hough, Derek Hough, Carrie Ann Inaba, Bruno Tonioli Plot Keywords , Self - Host Alfonso Ribeiro Self - Host Julianne Hough Self - Judge Derek Hough Self - Judge Carrie Ann Inaba Self - Judge Bruno Tonioli Episodes List Dancing with the Stars Season 20 :Episode 1 Week 1: Spring 2015 Season Premiere Week 1: Spring 2015 Season Premiere 2015-03-16 The competition sees celebrities perform choreographed dance routines which are judged by a panel of renowned ballroom experts and voted on by... Dancing with the Stars Season 20 :Episode 2 Week #1 Results & Week #2 Performances Week #1 Results & Week #2 Performances 2015-03-23 The competition sees celebrities perform choreographed dance routines which are judged by a panel of renowned ballroom experts and voted on by... Dancing with the Stars Season 20 :Episode 3 Week #2 Results & Week #3 Performances Week #2 Results & Week #3 Performances 2015-03-30 The competition sees celebrities perform choreographed dance routines which are judged by a panel of renowned ballroom experts and voted on by... Dancing with the Stars Season 20 :Episode 4 Week 4: Most Memorable Year Week 4: Most Memorable Year 2015-04-06 The competition sees celebrities perform choreographed dance routines which are judged by a panel of renowned ballroom experts and voted on by... Dancing with the Stars Season 20 :Episode 5 Week #4 Results & Week #5 Performances Week #4 Results & Week #5 Performances 2015-04-13 The competition sees celebrities perform choreographed dance routines which are judged by a panel of renowned ballroom experts and voted on by... Dancing with the Stars Season 20 :Episode 6 Week 6: Spring Break Night Week 6: Spring Break Night 2015-04-20 The competition sees celebrities perform choreographed dance routines which are judged by a panel of renowned ballroom experts and voted on by... Dancing with the Stars Season 20 :Episode 7 Week 7: Eras Night Week 7: Eras Night 2015-04-27 The competition sees celebrities perform choreographed dance routines which are judged by a panel of renowned ballroom experts and voted on by... Dancing with the Stars Season 20 :Episode 8 10th Anniversary Special 10th Anniversary Special 2015-04-28 The competition sees celebrities perform choreographed dance routines which are judged by a panel of renowned ballroom experts and voted on by... Dancing with the Stars Season 20 :Episode 9 Week 8: America's Choice Week 8: America's Choice 2015-05-04 The competition sees celebrities perform choreographed dance routines which are judged by a panel of renowned ballroom experts and voted on by... Dancing with the Stars Season 20 :Episode 10 Week 8: Results Week 8: Results 2015-05-05 The competition sees celebrities perform choreographed dance routines which are judged by a panel of renowned ballroom experts and voted on by... Dancing with the Stars Season 20 :Episode 11 Week 9: Performances Week 9: Performances 2015-05-11 The competition sees celebrities perform choreographed dance routines which are judged by a panel of renowned ballroom experts and voted on by... Dancing with the Stars Season 20 :Episode 12 Week 9: Results Week 9: Results 2015-05-12 The competition sees celebrities perform choreographed dance routines which are judged by a panel of renowned ballroom experts and voted on by... Dancing with the Stars Season 20 :Episode 13 Week 10 The Finals Week 10 The Finals 2015-05-18 The competition sees celebrities perform choreographed dance routines which are judged by a panel of renowned ballroom experts and voted on by... Dancing with the Stars Season 20 :Episode 14 Season Finale Results Show Season Finale Results Show 2015-05-19 The competition sees celebrities perform choreographed dance routines which are judged by a panel of renowned ballroom experts and voted on by...