TV Dexter's Laboratory - Season 4 Episode 26 : Bygone Errors Dexter's Laboratory - Season 4 Episode 26 : Bygone Errors 7.7/10 by 849 users This takes place in the future, where Old Man Dexter tells about his ""glory days"". And Old lady Dee Dee keeps on adding her opinions as well... Details Casts Posters Images Title Dexter's Laboratory - Season 4 Episode 26 : Bygone Errors Alternative Titles Dexter First Air Date 1996-04-28 Last Air Date 2003-11-20 Number of Episodes 220 Number of Seasons 4 Genres Animation, Comedy, Sci-Fi & Fantasy, Networks Cartoon Network, Casts Candi Milo, Kat Cressida, Jeff Bennett, Kath Soucie, Eddie Deezen Plot Keywords , Dexter (voice) Candi Milo Dee Dee (voice) Kat Cressida Dad (voice) Jeff Bennett Mom (voice) Kath Soucie Mandark (voice) Eddie Deezen Episodes List Dexter's Laboratory Season 4 :Episode 1 Beau Tie Beau Tie 2002-11-22 Dexter, a boy-genius with a secret laboratory, constantly battles his sister Dee Dee, who always gains access despite his best efforts to keep her... Dexter's Laboratory Season 4 :Episode 2 Remember Me? Remember Me? 2002-11-22 Dexter, a boy-genius with a secret laboratory, constantly battles his sister Dee Dee, who always gains access despite his best efforts to keep her... Dexter's Laboratory Season 4 :Episode 3 Overlabbing Overlabbing 2002-11-22 Dexter, a boy-genius with a secret laboratory, constantly battles his sister Dee Dee, who always gains access despite his best efforts to keep her... Dexter's Laboratory Season 4 :Episode 4 Sis-Tem Error Sis-Tem Error 2003-04-25 Dexter, a boy-genius with a secret laboratory, constantly battles his sister Dee Dee, who always gains access despite his best efforts to keep her... Dexter's Laboratory Season 4 :Episode 5 Bad Cable Manners Bad Cable Manners 2003-04-25 Dexter, a boy-genius with a secret laboratory, constantly battles his sister Dee Dee, who always gains access despite his best efforts to keep her... Dexter's Laboratory Season 4 :Episode 6 Dexter's Library Dexter's Library 2003-04-25 Dexter, a boy-genius with a secret laboratory, constantly battles his sister Dee Dee, who always gains access despite his best efforts to keep her... Dexter's Laboratory Season 4 :Episode 7 The Scrying Game The Scrying Game 2003-05-02 Dexter, a boy-genius with a secret laboratory, constantly battles his sister Dee Dee, who always gains access despite his best efforts to keep her... Dexter's Laboratory Season 4 :Episode 8 Monstrosi-Dee Dee Monstrosi-Dee Dee 2003-05-02 Dexter, a boy-genius with a secret laboratory, constantly battles his sister Dee Dee, who always gains access despite his best efforts to keep her... Dexter's Laboratory Season 4 :Episode 9 Dad Man Walking Dad Man Walking 2003-05-02 Dexter, a boy-genius with a secret laboratory, constantly battles his sister Dee Dee, who always gains access despite his best efforts to keep her... Dexter's Laboratory Season 4 :Episode 10 Dexter's Little Dilemma Dexter's Little Dilemma 2003-05-09 Dexter, a boy-genius with a secret laboratory, constantly battles his sister Dee Dee, who always gains access despite his best efforts to keep her... Dexter's Laboratory Season 4 :Episode 11 Faux Chapeau Faux Chapeau 2003-05-09 Dexter, a boy-genius with a secret laboratory, constantly battles his sister Dee Dee, who always gains access despite his best efforts to keep her... Dexter's Laboratory Season 4 :Episode 12 D² D² 2003-05-09 Dexter, a boy-genius with a secret laboratory, constantly battles his sister Dee Dee, who always gains access despite his best efforts to keep her... Dexter's Laboratory Season 4 :Episode 13 Head Band Head Band 2003-05-16 Dexter, a boy-genius with a secret laboratory, constantly battles his sister Dee Dee, who always gains access despite his best efforts to keep her... Dexter's Laboratory Season 4 :Episode 14 Stuffed Animal House Stuffed Animal House 2003-05-16 Dexter, a boy-genius with a secret laboratory, constantly battles his sister Dee Dee, who always gains access despite his best efforts to keep her... Dexter's Laboratory Season 4 :Episode 15 Used Ink Used Ink 2003-05-16 Dexter, a boy-genius with a secret laboratory, constantly battles his sister Dee Dee, who always gains access despite his best efforts to keep her... Dexter's Laboratory Season 4 :Episode 16 School Girl Crushed School Girl Crushed 2003-05-23 Dexter, a boy-genius with a secret laboratory, constantly battles his sister Dee Dee, who always gains access despite his best efforts to keep her... Dexter's Laboratory Season 4 :Episode 17 Chess Mom Chess Mom 2003-05-23 Dexter, a boy-genius with a secret laboratory, constantly battles his sister Dee Dee, who always gains access despite his best efforts to keep her... Dexter's Laboratory Season 4 :Episode 18 Father Knows Least Father Knows Least 2003-05-23 Dexter, a boy-genius with a secret laboratory, constantly battles his sister Dee Dee, who always gains access despite his best efforts to keep her... Dexter's Laboratory Season 4 :Episode 19 Dexter the Barbarian Dexter the Barbarian 2003-05-30 Dexter, a boy-genius with a secret laboratory, constantly battles his sister Dee Dee, who always gains access despite his best efforts to keep her... Dexter's Laboratory Season 4 :Episode 20 Tuber Time Tuber Time 2003-05-30 Dexter, a boy-genius with a secret laboratory, constantly battles his sister Dee Dee, who always gains access despite his best efforts to keep her... Dexter's Laboratory Season 4 :Episode 21 Sore Eyes Sore Eyes 2003-05-30 Dexter, a boy-genius with a secret laboratory, constantly battles his sister Dee Dee, who always gains access despite his best efforts to keep her... Dexter's Laboratory Season 4 :Episode 22 Babe Sitter Babe Sitter 2003-09-05 Dexter, a boy-genius with a secret laboratory, constantly battles his sister Dee Dee, who always gains access despite his best efforts to keep her... Dexter's Laboratory Season 4 :Episode 23 Mountain Mandark Mountain Mandark 2003-09-05 Dexter, a boy-genius with a secret laboratory, constantly battles his sister Dee Dee, who always gains access despite his best efforts to keep her... Dexter's Laboratory Season 4 :Episode 24 2Geniuses 2Gether 4Ever 2Geniuses 2Gether 4Ever 2003-09-05 Dexter, a boy-genius with a secret laboratory, constantly battles his sister Dee Dee, who always gains access despite his best efforts to keep her... Dexter's Laboratory Season 4 :Episode 25 Height Unseen Height Unseen 2003-09-12 Dexter, a boy-genius with a secret laboratory, constantly battles his sister Dee Dee, who always gains access despite his best efforts to keep her... Dexter's Laboratory Season 4 :Episode 26 Bygone Errors Bygone Errors 2003-09-12 Dexter, a boy-genius with a secret laboratory, constantly battles his sister Dee Dee, who always gains access despite his best efforts to keep her... Dexter's Laboratory Season 4 :Episode 27 Folly Calls Folly Calls 2003-09-12 Dexter, a boy-genius with a secret laboratory, constantly battles his sister Dee Dee, who always gains access despite his best efforts to keep her... Dexter's Laboratory Season 4 :Episode 28 Voice Over Voice Over 2003-09-19 Dexter, a boy-genius with a secret laboratory, constantly battles his sister Dee Dee, who always gains access despite his best efforts to keep her... Dexter's Laboratory Season 4 :Episode 29 The Blonde Leading the Blonde The Blonde Leading the Blonde 2003-09-19 Dexter, a boy-genius with a secret laboratory, constantly battles his sister Dee Dee, who always gains access despite his best efforts to keep her... Dexter's Laboratory Season 4 :Episode 30 Comic Stripper Comic Stripper 2003-09-19 Dexter, a boy-genius with a secret laboratory, constantly battles his sister Dee Dee, who always gains access despite his best efforts to keep her... Dexter's Laboratory Season 4 :Episode 31 Tee Party Tee Party 2003-09-26 Dexter, a boy-genius with a secret laboratory, constantly battles his sister Dee Dee, who always gains access despite his best efforts to keep her... Dexter's Laboratory Season 4 :Episode 32 Dexter's Wacky Races Dexter's Wacky Races 2003-09-26 Dexter, a boy-genius with a secret laboratory, constantly battles his sister Dee Dee, who always gains access despite his best efforts to keep her... Dexter's Laboratory Season 4 :Episode 33 The Lab of Tomorrow The Lab of Tomorrow 2003-11-04 Dexter, a boy-genius with a secret laboratory, constantly battles his sister Dee Dee, who always gains access despite his best efforts to keep her... Dexter's Laboratory Season 4 :Episode 34 Chicken Scratch Chicken Scratch 2003-11-04 Dexter, a boy-genius with a secret laboratory, constantly battles his sister Dee Dee, who always gains access despite his best efforts to keep her... Dexter's Laboratory Season 4 :Episode 35 Garage Sale Garage Sale 2003-11-04 Dexter, a boy-genius with a secret laboratory, constantly battles his sister Dee Dee, who always gains access despite his best efforts to keep her... Dexter's Laboratory Season 4 :Episode 36 They Got Chops They Got Chops 2003-11-20 Dexter, a boy-genius with a secret laboratory, constantly battles his sister Dee Dee, who always gains access despite his best efforts to keep her... Dexter's Laboratory Season 4 :Episode 37 Poetic Injustice Poetic Injustice 2003-11-20 Dexter, a boy-genius with a secret laboratory, constantly battles his sister Dee Dee, who always gains access despite his best efforts to keep her... Dexter's Laboratory Season 4 :Episode 38 Comedy of Feathers Comedy of Feathers 2003-11-20 Dexter, a boy-genius with a secret laboratory, constantly battles his sister Dee Dee, who always gains access despite his best efforts to keep her...