Don't get it
1) Pay £70 for 2 tuner functionality and use your PS3's hardware (disk space etc.) so you can record digital TV. Perhaps it will upscale the DTT source for an HD set - not mentioned though, just guessing.
2) Pay £99 for a Thompson DTI6300S dual tuner digital PVR with a built in 250GB hard disk of its own. It has TopUpTV but that is of little use.
So, £29 extra for 250Gb and no use of existing resources...
Am I missing something ?