In many tv shows and films, the voiceovers lend zero added value

I'm still watching, and loving, Gossip Girl, but I'm also really put off by the voiceovers by the mysterious "Gossip Girl". Perhaps there are one or two situations in which the GG voiceovers say something revelatory or interesting, but in general they're incredibly obvious. For instance, the show will cut to a picture of some girl messing around when sh…