I do not understand the "work 'till you drop" ideology in the filmmaking world. I can't see how it's somehow cheaper to work really long hours because the number of mistakes you start making grows exponentially the longer you go.
Not having time to take a look at what you've been shooting while you're shooting is just... incomprehensible to me. I can imagine under a TV schedule that you're trying desperately to get something finished under a deadline although honestly I don't get why production doesn't just start a few weeks earlier instead.
Putting the producer under a chopping block and telling them that they get whacked if they go over 10 hours has a magical ability to make things happen on time. Not allowing a production to go into overtime simply means that production will mysteriously become vastly more efficient at shooting. I've seen it happen on so many shows. It's a kind of fascinating thing to watch.