TV problems.
Our boat is a 2012 480. The TV is 2012 and analogue. In 2012 TVs had a bezel and it’s built into a wall cavity.
So.. to replace the TV I’m looking at having to cut out the wall cavity and build a new wall cavity. I’m not looking forward to that.
It’s obviously not a unique issue, as house wall cavities and TVs have been around for years.
Our boat looks great. I don’t want to compromise it’s looks for a TV, so whatever the solution, it must be elegant and functional. I have had a digital set top bov, but the TVs remote receiver has stopped working. (It’s the TV, not the remote as I can see the remotes infrared light working when I look at the remote on my phone’s camera )
So, does anyone have any ideas apart from a bit of fibreglass work?
Sorry about the delay, boat life got in the way 

We had exactly the same issue and it’s quite daunting when you look a a beautifully made ‘hole’ and think of the consequences of the TV no longer working.
We had a Samsung Series 5 N5300 that stopped working… Notably that model only seemed to be available in South Africa… 
I found a Phillips 6009 locally that fitted in the hole but the edges were no longer neatly fitted, it’s a few mm smaller - and modifying the frame was a big job if it was possible at all… All normal TV buying factors - resolution/audio etc are secondary to width and height!
My solution was to re-use the bevel from the existing dead TV (mine clipped off with a small flat blade screwdriver). I would happily have cut it off with a dremel! I had to dremel out a window for the TV remote infra-red pickup.
So I put the Phillips TV in the hole it almost fitted with a bevel from the old TV (that fitted the hole😁) stuck on with double sided tape.
Not perfect - but not a bad compromise…
Note… From my research 40" TV’s as becoming a thing of the past… 43" TV’s are taking over because that format does the higher resolutions… Worryingly - 43" will not fit the space available…
If I had a shore-side storage option I would probably buy a 40" TV now as a boat spare for when it goes wrong.
The “vesa” standard holes also had to be re-drilled. If you want my solution to that then ask.