No, I think it would look great. I would do the whole wall though over the doors too or just a definite strip where the tv is. Whichever way you go make it look deliberate. Actually considering your switches and sockets maybe just the width of the tv or a bit wider. Consider a couple of shelves fixed below too to add a bit of detail or maybe a single shelf. The wood veneer hub has all kinds of wood veneer finishes. You'll also have to make a decision regarding whether to cover or leave the skirting exposed.

Thank you for both your comments. Love the shelving idea. With regards to the radiator it’s not fully against the wall. It’s secured either side with space behind to slide the pan sling kit boards behind. Thank you!

Panelling*

I would not opt for panelling, your kitchen fronts and your doors already are. Chair rail or perhaps picture rail moulding. If for cleaning purposes, a trim would suffice, as you could use washable paint below it. Examples (i prefer the second one):

I like the first image from Rinked. The wall needs something to make the TV look less stark, but not panelling. You already have shaker kitchen doors so I think panelling will clash

Thank you all for your advice, I do like the idea of having a trim!