Brighthouse's entry in Wikipedia is down right scary, I copied this little bit;
BrightHouse is the largest rent-to-own company in the United Kingdom, with over 270 stores. BrightHouse is a trading name of Caversham Finance Limited which is owned by private equity firm Vision Capital.
Now, to me, "rent to buy" in this instance would & does imply that in the event of a customer taking say. a 24 month agreement to buy goods, and pay every single payment on time, without fail, at the end of the 24 months period, that customer still must pay an extra amount in order to "buy" the goods. Draconian, to say the very least.