Personal video recorders, or PVRs, record television programmes. Unlike video recorders or DVD recorders, which use removable tapes or discs to store programmes, a PVRrecords TV to an internal hard disk. This means that a PVR's storage capacity is huge – more than 100 hours of programming is typical, and the largest can store 250 hours worth of TV before the hard drive is full.
There’s also no degradation in picture and sound quality when you record a programme – when you play it back it’s just as good as watching live TV. So why ever miss you're favourite program again!