Plot hole: During the episode "Superstition", Onizuka thinks he has cancer because the magnetic pain-pads he was wearing created strange blobs in the X-Ray he has taken. However, given the fact that the X-Ray was so strange, doctors would have given him a complete physical, and noticed the pads much sooner. Here, they literally just assume he has tumors, and fail to ever take notice of the pads. Simply impossible, given the gravity of the situation. (Obviously, this is to pay off at the very end of the episode.)
GTO: Great Teacher Onizuka (1998)
1 plot hole in show generally - chronological order
Starring: Nanako Matsushima, Takashi Sorimachi, Aya Enjoji, Naohito Fujiki
Plot hole: During the episode "Superstition", Onizuka thinks he has cancer because the magnetic pain-pads he was wearing created strange blobs in the X-Ray he has taken. However, given the fact that the X-Ray was so strange, doctors would have given him a complete physical, and noticed the pads much sooner. Here, they literally just assume he has tumors, and fail to ever take notice of the pads. Simply impossible, given the gravity of the situation. (Obviously, this is to pay off at the very end of the episode.)
Trivia: The voice of Onizuka in the English dub of the series is provided by Steve Blum. However, he had to use an alias ("David Lucas") due to the show being a non-union job. Blum has since jokingly denied that he and Lucas are the same person, despite it being a well-known fact that they are.