With a husband who is a film critic, we often get television shows that he has to watch and review. Because they all arrive at the same time, the best way to get them watched without going crazy is to watch them as they are aired. So, not only do we record shows that we want to watch, we also record things that we have to watch.
What I have discovered is that the best thing about having a DVR is the ability to skip the commercials. Not only do I get to avoid being sold on some new miracle product, but I also get to avoid seeing previews of terrible television shows and movies. An added bonus is that it also takes less time to watch the shows when I don't watch the commercials.
I honestly don't know how people watch television without the aid of a DVR.