No it wasn't,Episode 27(in Case Closed)/28 (in Detective Conan) Richard's Class Reunion Part 1/Kogorou's Class Reunion M- Case Part 1,was my first Case Closed episode..even though I watch it in Japanese much more today,my first DC episode was in english on Adult Swim (it was my first anime actually ever!x3),with all the name changes and such,so yeah Ep 27(Eng)/Ep 28(Orig) was my first episode,and I'm one hundred percent positive it was!