Quote:can i put a splitter in the living room and away to the new point (would this work ok or does it affect the signal if the 2 tv`s are on at the same time)
Ideally do what Lectrician suggested and put a distribution amplifier in the loft. Close to the aerial is best because if you put it at the TV end any gain in the amplifier also boosts noise that gets into the cable.
You might get away with a passive splitter if the signal is good in your area. If it's marginal it might effect which channels you can recieve.