Fakery at the Olympics so far:
1) the cute little girl who sang so well was lip-synching
2) the fireworks finale was CGI
Other than that, everything's on the square.
When your ruse is shattered
and logged for all to see,
it's egg that has been splattered
on your physiognomy.
UPDATE: NBC says they alerted viewers to the CGI fireworks. But if you read the transcript that they are presenting in their own defense, it's very far from clear. Costas calls it "almost animation." I'm not sure what the "almost" is doing there except misleading viewers.
HALF-EXPECTED UPDATE: Perhaps when the little girl was singing, Costas said "It's amazing to see such a combination of singing and cuteness. It's almost too perfect to be true."