All I know is that I have NTL in the house, though I have never paid a bill. It came with the house when I bought it 4yrs ago
If this is the case what would work best for me, boosters, splitters or video senders?
How do you receive your tv at the moment? Is it from a roof ariel or through an NTL point in the wall?
Depending on the age of the house, there may already be additional points set up in other rooms, if there isn't, then it will probably involve additional cables. How unsightly that is will depend on the rooms you want the additional points in and the location of the equipment where it is to be split from.
If there are no tv points in the other rooms then it's a big enough task to split off and put them in. whether you do it yourself or get NTL to do it (n ot touching upon whether officially you are obliged to pay them for the additional points) depends on how good and tidy a job you think you could do.
But on that side: no additional points in the rooms, to have it run from the cable is going to mean additional cable somewhere.
For the relay system you will need a digibox. This will mean subscribing to the NTL(UPC) digital service. Then you can bu the relay from most electronic goods shops. It comes with a relay and receiver. You plug the relay into the back of the digibox and the receiver at whatever other television you want. You can then watch programmes from the digibox on that television (and control them too). However, unlike having the separate points, if I want to watch the football and the mrs something else, unless there are separate points in, even with the relay we cannot watch different programmes in different rooms. Only what is on the one digibox.
It may be worth seeing where your cable comes in from. Are the cables underground and to a box on the side of house, or are they fixed across the front of houses along a row? Then think of which rooms you want the TV in (are they at the front or rear and are they on the same side as where the cable is fixed). Then decide whether you will want the extra points for when there are clases in the tv schedule. If there's no issue with clashes, get the digital service and use the relay system.