GameSpot have posted a new "official" trailer of Grand Theft Auto IV, making this the fifth (and no doubt final) trailer before the game is released on Tuesday. It contains some old scenes from previous trailers in addition to some new ones aswell. Originally it was assumed there would only be four trailers, so this comes as quite a surprise.
(UPDATE) Some members at our forum have reported seeing it on ESPN (a US television network).
Link: Grand Theft Auto IV - Trailer 5