Got news for ya...it's not WOWO that was restricting Denton..it was KEX, Portland Oregon (the other Class A on 1190)..PLUS an unbuilt Canadian allocation on 1190 that has been since dropped from the tables.
When CC bought 1190 Dallas in 2001, it WAS suggested (by a very forward thinking engineer

to CC VP of Engineering Gil Garcia that the pattern toward WOWO could be "legally" opened up since WOWO downgraded (it already IS opened and above legal limits when a FIM was used to check the pattern at Lowery Mays and Randy Michaels' insistance...new cell towers in Rockwall RIGHT in the main lobe caused the pattern to reflect that way..it was supposed to be 3mV toward WOWO, it was 6-10 times worse!!)..AND since CC owned KEX, that could be opened up as well and fix the north Dallas reception problem (you can interfer with your own sister stations by having a mutual interference agreement drawn up...all perfectly legal in case one of the two gets sold later!)....but CC did not want to spend the money for that, especially since they just spent $18million for 1190 buying it from Radio One (what a joke of a ROI for CC...RO though was laughing to the bank!) but it aint gonna happen now..
Since WOWO downgraded, a number of co channel 1190s have increased power and changed patterns (the Kansas City and Atlanta ones comes to mind)...CC blew it for 1190 in Dallas...could have, but didnt and will not be able to...