I think the confusion arises from the new free digital tv service - Freesat.
This is part funded by the BBC and requires a satellite and special digibox. The old digiboxes are not compatible.
You have choices:
1. Digital tv Freeview, with a digital PVR
2. Digital tv Freesat, with a dish and Freesat PVR
The main difference between the two, as far as I am aware, is free HIgh Definition (HD) channels will only be available with Freesat, and you will of course need a HD tv.
Neither has subscription.
Whatever you decide, make sure your PVR has a large hard drive and a minimum of two tuners.