I found that out when I was getting into HDTV in the late 90s. The top 10 metro areas were required to be on the air first and that included Dallas/Fort-Worth(number 10), but not Houston(number 11). As of 2000, Houston's #10 while Dallas moved up to number 9.
[link|http://geography.about.com/library/weekly/aa010102a.htm|Largest Metrpolitan Areas]
Rank\tMetropolitan Area Name\t States\t2000 Pop.\n 9\tDallas-Fort Worth\t Texas\t5,221,801\n10\tHouston-Galveston-Brazoria Texas\t4,669,571
Darrell Spice, Jr. [link|http://spiceware.org/gallery/ArtisticOverpass|Artistic Overpass]\n[link|http://www.spiceware.org/|SpiceWare] - We don't do Windows, it's too much of a chore