sentences:  But for unknown reasons, no other "edgy" shows ended up being green lit for this block and "Invader Zim" was left as the only show on the network that could fit such a block, and as a result, this block of "edgy" programming never ended up happening.By the time the show was made, Nickelodeon had decided that they were no longer interested in trying to reach an older audience, which left "Invader Zim" hard to place in an appropriate time slot suitable for its originally intended demographic.