VM's co-ax is part of their network and (well-intentioned) DIY amendments can often end badly. They're not recommended, but you have a few options.
1: Use the TV Control app on a compatible mobile device to stream your recordings anywhere on your home network. "TV Go" will do the same for live channels.
2: Pay the (now £25) non-fault callout fee to have VM install a connection point in your other room.
3: If loose cables aren't an issue, run a longer HDMI lead from where your V6 current lives, to the location you want to watch TV.
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