I swore off of them in 2000 when they prematurely called Florida for Gore, then I went back on 9/11. I periodically went back when something big happened, but the final straw was when Obama got elected in 2008. I got tired of seeing his ugly face, and hearing his whiny, droning voice on Fox every day. I shut them off, and haven't been back since. I realized that I don't need my news filtered through a person who is paid to give me the version of the news that the network wants me to hear.
I swore them off - and TV altogether - in 2001 when they hired Jerry Rivers.