First to second quarter drop has definitely been big the last two weeks, but the show seems to sustain much of its audience until well into the 2nd hour, which is a good sign. Dynamite was the one wrestling show until very recently that used to buck the recent trend of each subsequent wrestling hour being less watched than the previous one, and would actually grow through two hours, but with TBBT as the lead-in now, the first hour will generally probably be bigger unless there's a massive marquee match in the 2nd hour.