"The Chase" is an NBC TV pilot that is filming all over Dallas, and it seems, especially in East Dallas. The show used Woodrow Wison High School as a location recently, according to this. That show stars Jesse Metcalfe, who played the hot teenage gardner on "Desperate Housewives".
Another TV pilot that’s filming in Dallas, and it seems, especially in East Dallas, stars Colin Hanks. I’ve heard it’s called "Code 5-8", but a friend of a friend who recently worked as an extra during some filiming at Fair Park says it might be called "The Good Guys".