TV advice needed

Phishing's idea of using a bluetooth audio dongle paired to a sound bar is a good one. I have such a rechargable dongle which just plugs into the headphone socket on the TV and and gives 8 hours listening. I use it paired to Bluetooth headphones when my wife doesn't want to hear what I'm listening to.

I would be wary of using any method which requires the cab radio to be powered up unless you are confident it will not flatten your engine battery.

peedee

Nevchap, ignore my last para, I nearly forgot you have a caravan. It applies  to anyone with a motorhome where the radio is more than likely powered from the engine battery.

peedee

It can also be quite good advice for caravan users who are off grid, in that "car radios" can be disproportionately heavy users of battery power, here along with the TV itself.

Their development unlike portable radios, seems never to have been focused on power minimisation, possibly as there was no need in their intended market.

Clearly, at least with a caravan this is of no importance if on an EHU.

Yes but not for TV, as I said the sound is OK for me. I do have the advantage of it being on a cabinet to the side of the door with a closed hard surface to the side and the back so the sound does bounce. As you point out the sound needs to be reflected as virtually all the TVs have rear facing speakers. 

The other way is to pair the headunit and TV (if it is a smart one) this should remove the lag.

If the BT solution is not good for you then the hard wired solution will certainly work with the radio headunit,. I went out of the van under the floor through a vent, cross the van (tied to a pipe if you can, not the cable bundle) and up behind the kitchen duct into the OH locker next to the radio. Excellent TV sound from the van speakers even though they are cheap paper ones.

Another way of achieving an improved sound is to connect the TV to the caravans on board speakers using a simple cable into the radio auxiliary if they are not two far apart. The sound is quite good as the speakers are usually spread apart.We manage to hide the cable inside the wall cupboards.

 Have found that MOH does not like to listen/watch the programmes that I do, so have routed a 4 metre. cable from set to headphones, via the overhead cupboard units,so they either of us can watch and listen, via headphones, without disturbing the other who may wish to navel gaze or read a book.

Of course if we both wish to watch and listen we merely pull the plug.

would it not be easier to use wireless headphones? 🤔

As I said earlier - it won't work unless they are 'low latency' - otherwise you get a noticeable time lag between the picture and the sound. Low latency headphones are usually a lot more expensive than 'normal' ones but they do work.  I have this system on my home TV.