Instant Rewind

[gers1978]

Just wondering why all boxes don't just have 1 option (60 minutes)? What's the disadvantage of setting it to the highest?

 

[Broadz]

The longer the instant rewind, the more disc space is used. Admittedly, it can only be auto-recording one channel at any one time, but sixty minutes of HD will take up the equivalent of four hours of SD, which leaves four hours less storage space on your hard drive for recordings that you haven't watched yet.