That indicates area of service from whence FCC license paperwork gets confused. All full power TV stations in DFW are at an antenna farm in DeSoto/Cedar Hill.
TV studios are all over the Metroplex; downtown Dallas (WFAA 8 ABC), Irving/Las Colinas (KDFW Fox 4), south of DFW airport (KXAS NBC 5), I30 east of downtown Ft Worth (KTVT CBS 11).
Lots of Spanish language stations in downtown Dallas and KERA 13 PBS. The largest owner/operator in the US is Nexstar in Irving/Las Colinas (KDAF CW 33).
AND everybody has a sister station:
Channel 4 and 27
Channel 8 and 29
Channel 11 and 21
One group (HC2) has 6 stations.
Low power stations (LPTV) are abundant and all over the area. Nexstar is in the process of buying the owner of WFAA - Tegna.
All together there are 41 licensed stations broadcasting over 160 channels. That’s even with several stations being offline. Also ATSC 3.0 Nextgen TV is available on 3 stations.
Check Rabbitears.info:
Sorry… Distracted by something sparkling.
My location is Midway Road and Northwest Highway as reflected in the report. Precise coordinates are masked…
I chose a 140 mile radius to get an idea of any co-interference.
Are you sorry you asked? 