From Leander, Texas, in the far northern Austin suburbs, with 3+ minutes of totality starting at 1335 - I started at 1325 with 1620 WTAW, which was having enhanced reception. There was a lot of electrical interference. There was a little bit of enhancement of Dallas and San Antonio before totality. The fun really started about 3 minutes after totality. Here are my notes:
* = San Antonio area; ** = Dallas/Fort Worth area; *** = Houston area
1329 - Quick scan from 540 to 970 then from 1560 (local) to 1620. Nothing unusual except for a bit of enhancement.
1330 - Emergency weather notification, tones and all, on WTAW.
1335 - WTAW gets slightly stronger.
1339 - Starting dial scan at 540. Non-locals: 550 KTSA*, 570 KLIF**, 630 KSLR* ??, 660 KSKY**, 680 KKYX*, 700 KHSE (probably not KSEV from the Houston area), 680, 700, 720 KSAH*, 740 KTRH***, 770 KAAM** (faint), 790 KBME***? (would be odd)
1342 - 820 WBAP** - in the midst of their totality, a live broadcast from planetarium
1345 - 860 KONO*, 950 ??, 960 ?? (splat from local 970 KIXZ), 1000 KTOK Oklahoma City, 1010 KBBW Waco, 1030 ??, 1080 KRLD** (post-eclipse, encouraging listeners to call in with their experiences), 1090 KAAY Little Rock (strong w/ deep fades)
1355 - 1100 KDRY* w/ ID, 1130 - KWKH Shreveport, 1140 - ??? (español), 1160 KBDT**, 1170 - KTSB Tulsa, 1190 - KFXR**, 1200 WOAI* (strong, no interference at all), 1230 - probably KWTX Waco, also quite strong
1401 - 740 KTRH again, then not a whole lot other than locals until reaching 1420, 1430, 1460, none of which I could identify
1405 - stopped; pretty much fizzled out, might have been able to do more had there not been so much atmospheric noise due to stormy weather - I also kind of expected more but Little Rock seemed to be the farthest reception.
Some of these are guesses - most standard-issue news, sports, and religion continued on as usual. Local 1060 KTSN did a mix of sun-oriented music - I caught the end of that set while dial-scanning. Only Dallas-Fort Worth stations appeared to do any live-and-local programming during the actual period of totality.
Coverage maps show Houston's KTRH with daytime coverage in Austin but, at least in far north Austin, it did not come in much at all aside from the period of the eclipse.
It was cloudy with breaks, but as the sunlight dimmed, it seemed that some of the energy feeding the clouds diminished, and we were able to see the whole period of totality. Something similar happened with the 2017 eclipse in Columbia, Mo.; so now I've seen two total eclipses in their areas of totality. Crowds in Leander were not nearly what were expected; we believe that all the talk of cloudy weather caused some people to give up or go elsewhere.
I recorded these dial scans but it will be next week before I can post them.