 To this day, Washington, D.C. is the only Nielsen market ranked among the ten largest U.S. television markets in 1994 outside of New York City, Los Angeles and Chicago that did not have its major network affiliations (outside of network shutdowns and launches) affected during and since the time period of the switches (Atlanta, Dallas and Detroit were affected by the New World deal, while Boston and Philadelphia were affected via the Westinghouse deal).While Houston was the only major Southern city not affected by the switches and its major network affiliates still remain the same, it did not become a Top 10 market until 2005–06 when it swapped the 10th position with Detroit.Instead, Houston was in the midst of ownership realignments that began a decade before and have remained the same since.