To show how long it took for KXAS to even provide coverage of the tornado, the YT channel Random News Footage composed a six-minute timelapse of the programming on KDFW, KXAS, WFAA and KTVT during the period between the issuance of the tornado warning at 9:00pm until KXAS began their third cut-in of the warning timeframe at 9:24:
Also of note, as basically referenced by KTVT meteorologist Jeff Ray in footage of their storm coverage on StormSpotterMike's channel, KTVT took quite a bit of time to provide tornado coverage over its airwaves. As Ray mentions, they continued offering only a Facebook Live stream of the storm coverage for about 8-10 minutes after the warning was issued (with KTVT airing the first act of that night's episode of Madam Secretary for about thirteen minutes after the first reports of the tornado having touched down near Love Field were made), and elected to commence television coverage on KTXA first, before throwing coverage onto KTVT, instead of starting a simulcast of coverage on KTVT and KTXA at the same time.