Photos: Panasonic Viera TH-42PZ81 Freesat plasma

Let's start with the most important thing, the satellite connection. As you'd expect, this is the familiar satellite F-type connector, which differs from regular aerial sockets in that it has a thread to keep the cable in place.

Next to the satellite input is the slot for a conditional access module. In a world that was fair and balanced, this CAM socket would enable you to plug in a Sky TV module, and subscribe to Sky's TV services if you wanted to. In reality, Murdoch will never allow this, and Ofcom is happy to allow him to do what he wants, so you're stuck with an over-priced Sky-branded box, or nothing. This socket is useful, however, if you want to subscribe to channels such as Setanta or what's left of the TopUpTV channels.