I think that the DVR has completely changed the way we watch television. I know it has in my house.
For instance, only a select few shows are what we call "DVR-Worthy." It's funny how my hubby Jeff and I each have our favorites....while I love me some "Glee" and "The Vampire Diaries," Jeff's gotta watch his "Diners, Drive-Ins and Dives" and "BBQ Pitmasters!"