I tend to record like Diane does. If there's something that I want to watch or think that I want to watch, I'll record it. Sometimes, due to time constraints, there are a more shows aired that I want to watch, than I have time to watch. Rather than fall behind in a lot of series, I'll end up not watching any episiodes of a given series unitl a time where my time allows me to catch up on that series. In looking at upcoming schedules, I think that time will be approaching soon. A lot of shows that I like are ending and new series that I like aren't starting until June. In the meantime, I'll have time to catch up on Cosmos and a few other shows. The same goes for movies. If I see something that's been sitting low in my Netflix queue for a while, I'll record it and remove if from my queue. A few weeks (or months) later, when I get around to watching it, I will.
There are also some shows that I do like to watch again a few months after the season has ended. Game of Thrones is one of those shows. I'll archive GOT on my DVR and probably rewatch the entire season once before the Blu-ray box set comes out. Once I have it on Blu-ray, I'll delete it from my DVR.