Cowboy Bebop at His Computer: Xandir's whole "Never ending quest to save his girlfriend until he realized he was gay and switched to a never ending quest to save his boyfriend" thing was really only important for the first three episodes of the first season. But any media outlet that described the show acted like it was an important part of his character.
Same deal with Clara's Octopussoir. It's mentioned in exactly two episodes, yet articles on the show speak of it like it's a vital part of her character.
Screwed by the Network: Comedy Central's broadcast schedule for the series was erratic, to say the least. When new episodes were not being screened, the show would often be off the schedule for months. Many viewers assumed the show was cancelled long before it actually was. It also had a gap of over a year between the first and second seasons. And one almost as long between the two halves of season 3.
Likewise was the case for Direct-to-Video Movie. The showrunners wanted to give the series a send off, but Comedy Central refused to fund them forcing the creator to have to use Adobe Flash to do the movie. Lampshaded by the plot of the direct-to-DVD movie, obviously.
Short Run in Peru: The second half of Season Three, delayed by Comedy Central for almost a year, was broadcast in Latin America two weeks before the US.