The product is only a few days old so I will be getting my money back
(hopefully).
They can have it repaired it they wish but I imagine it will be dumped in a
skip.
They probably only cost £30 to make anyway, the other £100 being
'overheads



You opened your new TV, adjusted the circuit, and now you want your
money back? If the store were mine I'd throw you and the TV out the door.