This is partially because these tend to be big media events, so there are a lot of eyes watching everything that goes on around them. And when a shocking moment occurs, there's a good chance that the person breathlessly telling you about it the next day saw it unfold a real time.
Another factor is that award shows tend to be boring and seem interminable when everything goes right, so a scuffle or mishap that would otherwise be mildly interesting at best suddenly becomes a highlight of the evening.
That's likely how a minor disturbance at MTV's most recent Video Music Awards found its way into national news, but the peculiar thing about it is that nobody seems clear on or at least willing to explain how it started.
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