North Dakota tower

[Russ Butler]

Happy New Year!  An AP story in today's paper about the grand opening of 
the world's tallest building in Dubai ("Burj Dubai") at 2,684 feet, 
taller than it's nearest competitor, the Taipei 101 (1,667 feet).   The 
Willis Tower (nee Sears Tower) in Chicago is the world's second tallest 
when spires and antennas are included in the measurement.

The article mentions that the Dubai building is the world's tallest 
"structure" beating out a television mast in North Dakota.  What would 
that tower be and how many broadcast signals does it accommodate? 
Thanks.  =Russ Butler