I don't really understand why anyone would want to watch televised fireworks. I've come up with four scenarios in which I think I would want to watch fireworks.
1) I can't go outside and see real fireworks either because I'm on death row or extremely old/ill and homebound.
2) I'm under the age of two and just like anything bright and colorful, but the loud boom is scary.
3) I'm abroad. I can see if I'm somewhere where no one really cares that it's the Fourth of July, if I can get fireworks over New York on some random channel or even over the internet, I might want to watch just to have a little happy America time in my life.
4) 3 words: Wicked Drug Trip