My family starts listening just after Thanksgiving, when one of the local radio stations starts playing it 24/7.
But my wife and I have been planning our now-annual outing to go see Trans-Siberian Orchestra for several months now. I got tickets several years ago as a Christmas present to her, really not knowing what to expect outside of the music we've heard on the radio. We were both completely blown away by that concert! The sounds, lights, pyrotechnics, moving stages, video screens, etc. were far and away much more impressive than anything we had ever seen before, even better by far than the Pink Floyd concert we went to in 1994.