Patik's Journal: Survivor and other shows spoiled by network commercials

(minor Survivor spoiler)

Anyone else notice how network TV ads are giving away too much? Fox commercials regularly give away key points in 24's plot. Just saw an ad on CBS for Survivor, and they basically told us that the merge is happening next episode.

I know it's not the end of the world, but why do they feel the need to give things away? Might as well just wait till the last five minutes to tune in and see who gets voted off.