Daylight savings time begins on 8 March which means that stations should begin sending PSIP data to that effect on 9 Febraury. The details on how this process should be managed are in ATSC A/65, Annex A and FCC regulations require that all except low power stations follow the standard.
Another early start.
WFAA (RF 8)
KERA (RF 14)
KTXD (RF 23)
KPXD (RF 25)
KDTN (RF 29)
A couple stations waited till late in the day Saturday but that doesn't make it less wrong.
KFWD (RF 9)
KDTX (RF 21)
KMPX gets a special shout out because they have two PSIP generators running putting out conflicting data:
KMPX (RF 30)
Being the day when this should happen.
KTXA (RF 18)
KTVT (RF 19)
KXAS (RF 24)
KXTX (RF 36)
Only four stations get it right.
As usual, performance was variable. Some stations made the change at 2AM CST as expected (a few waited an hour or two) but a few did other things.
Two stations (KDTX and KFWD) changed the day and hour data to zero at 8PM last night. Then changed DST status to in DST at 2AM.
K07AAD gave the whole DS_status thing a miss and just changed their broadcast time by an hour.
KMPX was very special as now one of their PSIP generators is in DST (time is 27465 seconds fast) and the other isn't. (with time 514 seconds slow)