Word is that the first 10 minutes of KTRK's (Houston) 10PM Newscast last night was just one commercial after the other.
Either the ABC O&O has just given up on news and going all commercials or the station had some technical problems that was keeping the newscast off the air.
August is a notoriously slow news month, but this might be a bit extreme.
The station made no mention of the problem on their Facebook page or Twitter page.
BTW that would have been the perfect place to let viewers know what was happening.