I usually get called out by family and friends to fix or work on something technical for their homes. I got a call from a relative one day who had just moved into a new house which a developer had done up. They'd put Cat 5 and a tv point in every room and a patch bay and cabinet in a room on the ground floor. I was asked round to wire up "the internet" into every room this despite having very good wifi. Whilst there I suggested that they could network their satellite receiver (used for foreign tv) and have the output in every room (wasn't sky so no multiroom). I said it should even be possible with another receiver or two to have a different channel on in each room if you wanted. That would be lovely, but it's not possible comes the reply from my relative and even if it was you can't do it you wouldn't know how to.
I explained that it was indeed possible I was the one with engineer in my job title, said I'd prove it and went home to collect a few bits and pieces. Came back armed with a couple of RF modulators, two FTA satellite receivers, a QED remote extender (used Cat 5), a cable tester and various connectors/convertors. I demonstrated the ability to have a receiver in each room or to have the same tv signal pumped around the building with the ability to change channel from each room. Their response oh that's rather clever isn't it, can you just wire up the living room for the satellite and we'll not bother in the other rooms just have to use Freeview I suppose!