Chris

If you use satellite to feed TV around your house, then you need one dish and one LNB, but the LNB must have one terminal for every cable run - and remember a set-top box with a PVR function will require two cables. If you're future-proofing, consider an octo-LNB (eight terminals), otherwise a quad might do. I have a quad on my dish with only two terminals in current use. The other two are tightly wound with self-amalgamating tape to keep the weather out and preserve them for future use.

You can have a mix of Sky, FreesatFromSky, Freesat or 'other' satellite receivers attached to the same dish. They all receive the same signals from the same satellites. The only stipulation is one cable, per LNB terminal, per tuner.

If you want to cable up for Freeview, you need one rooftop aerial, ideally with a masthead amplifier (unless you live in a good signal area), with a single cable running down to your loft. Install a distribution amplifier at that point and run separate cables to each room where you want a TV. A Freeview PVR requires only one cable, even though it has multiple tuners inside.

For Virgin Media, installation including all cabling is part of the price you pay when you sign up. There are sometimes reduced price installation deals (or even free ones) to be had. You could cable yourself but all you really need to do, if you want to hide the cable, is put cable trunking runs wherever you want them, plus pull-cords so a future installer can easily get the cable through.

For all of these applications, CT100 is more than adequate. Buy a drum of it and cut lengths as required.