Another round of the ol' "must carry rules" game. Any local full-power station can demand cable carriage at no cost to the cable company... or they can demand payment, but then the cable company can say no. In some cases, the "payment" just consists of carrying additional channels (like how WSTM in Syracuse gets TW to carry its low-power sister, WSTQ, along with its Weather Plus channel, currently only available on its 3rd digital channel).
Not being too familiar with Buffalo... I can't remember: are they metered continuously, or only during the traditional sweeps periods? (I Googled for an answer, but couldn't find anything quickly.)
If it's a constant metering situation, Lin should be able to tell, rather quickly, how many viewers they're losing. If they are losing big, then it would be in their best interest to concede. A significant ratings loss can cost a lot more than the $1.2M they're trying to gain. On the other hand, if they manage to maintain their ratings (through OTA viewers, as well as FiOS and satellite) then WIVB may be able to keep the blackout going indefinitely, until Time Warner gives in. (And they will, especially if they experience a mass exodus of customers switching to another Verizon.)
On the other hand, if Buffalo is a diary-based ratings market, the ball is in Time Warner's court. That's because WIVB has no "official" way of knowing how many viewers they're losing. Also consider, due to the DTV transition happening in mid-February, Nielsen has pushed February sweeps back to March for 2009 only. As a result, many are considering it a "throwaway" book, similar to July. That means this November's ratings will rule ad rates for about twice as long as normal. Stations need to really bring their A-game this November, and do everything they can to maximize their audience potential. Long story short, if it's a diary market, I suspect TimeWarner need only stick to its guns, as WIVB would be stupid to not give up before November sweeps begin.
Unless WIVB has a surefire way of knowing they aren't losing a lot of viewers, being blacked out from cable carriage isn't a good idea. Every day they're off cable, is another day viewers are forced to go elsewhere for local news. That's a golden opportunity for the other stations to make a "first impression" to welcome these abandoned viewers, and possibly win them over for good. And that's especially true this November, with the Presidential election happening. As I said before, it's too risky for WIVB to get greedy with TW... they may end up losing more than they wanted to gain.