@kezo Yes I will be able to do that in the coming weeks.
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Having said earlier your TV’s are fed from wall[lates, it might be advisable to pick wall plate at the same time of getting the coax – Incase a resistor has failed in one of your existing ones, which would cause picture issues on all tvs as it goes round the coil in the booster. Just get one for now and disconnect the other TV’s from the booster when you try 🙂
Pitty I wasn’t closer I would have brought some of my kit round and given you a hand or you could have borrowed it. One thing though I bet its something very simple!