We knew MSN would spend big to advertise the new engine, they even had a TV spot in the SuperBowl (I really wanted the Eagles to win). It also looks like MSN dressed up their search page for the big day.
![msn-superbowl.jpg](https://www.seroundtable.com/archives/msn-superbowl.jpg)
Forum discussion at Search Engine Watch and some others listed in the entry linked to above.