CAN SOMEONE RECOMMEND A PVR ?

Can someone recommend a decent pvr ? I thought they all worked the same, but I've just wasted £139.99 on the Sagem model from Argos that won't record radio stations (why ?). All I want is a reliable model that records radio stations, has the facility to delete unwanted channels & will accept 80 - 250 Gb hdd if the supplied hard drive packs up. I never had any trouble with the budget Digihome so why all these problems with a much more expensive model ?