What Fox Movie Channel (FMC) appears to be doing is running the first host segment after the end of the previous movie. Then it runs interstitals, the feature, and the second host segment.
Since FMC runs their movies commercial free you can probably check IMDB to find out the running time for the movies prior to those featured in the “Nights of Fright” there. For instance, Big Trouble in Little China runs 1hr 39min. Tonight’s first host segment started at 9:40ish.
So given that Batman runs 1hr 45min., in theory tomorrow’s first host segment will start at 9:45ish.