Christmas advertising for stores can sometimes be annoying this time of the year, but when it is done well, Christmas advertisements are very good. My roommate has introduced me to a British department store called John Lewis. Apparently, it always has a good advertisement around Christmas time, and I think that you'll enjoy this one featuring Monty the Penguin.
Not entirely sure how effective this advertisement is because it mostly just makes me want a penguin, and that is not going to happen.
Hope that you're enjoying the holidays!