Time Warner already dropped GSN from its systems here and in nearby markets (Rochester/Syracuse/part of Buffalo), so this doesn't surprise me in the least; it's disappointing, but not surprising.
Obviously it's not good for GSN, but I'm curious to know whether GSN asked for a rate increase and was booted as a result, or Time Warner simply decided that it wanted to use the space for its own networks. Here, after TW dropped GSN, it raised rates and then tried to soften the blow by adding Boomerang and Sportsnet New York... and somehow I'm having trouble buying TW's claim that it's merely "coincidental" that TW owns all of the former and part of the latter.