Thanks for your answer.
To very quick follow up questions (only 2 I promise)
Is there a time limit that Amazon need to contact me to retrieve the TV?
It wouldn't normally be an issue, except it's a 60inch TV and is taking up a lot of room in my garage storeroom.
Is there anything stopping me from calling out an engineer and getting the TV fixed out of my own pocket? (I realise that potentially I could lose the TV if Amazon arrange for it to be picked up)
Thanks Alex, I'll do just that!