I had another look at that device you linked to but can't quite fathom it out myself.
You do have to add a SATA drive, that's for sure, as it comes empty.
What I can't figure is whether it has a tuner or not but I don't think it has.
I get the impression you'd need a tuner card/device to record from.
Best phone E-Buyer and ask them, they're quite easy to get through to nowadays.
Alternatively, if you have enough space on your laptop's hard disk to record to, there's this external USB tuner to consider at around £32.00.
Link