Try to find a good HDD recorder supported by the PUC of the Beovision, and hide it.
Some times ago, I would have advised to buy a Tvix, but the DVICO company has now ceased all its activity in the TVix, so there will be no future software development (for DVB update compatibility for instance), so now I can only recommend to avoid it.
[EDIT] : Tvix is not dead, but in search of a buyer... So it looks better for the aftersale support... Here is the official answer to this (via digitalversus)