Being from Dallas, I thought that this recent Washington Post story was particularly interesting, though the article is about the TV show, not the city (in fact, the television show was actually filmed at Southfork Ranch, not technically Dallas proper).
The article describes how the "cowboy capitalism" of the Texas oil economy, exemplified by the show, had worldwide implications for the spread of capitalism during the Cold War. It is an interesting testament to the impact Texas had, and still has, on the world. Although the Texas Railroad Commission had long since lost its control over world oil prices by the 1980s, the ethos of the Texas oil economy still had a large cultural effect. Hey, "what starts here changes the world," right?