peter Airplay might not be the solution as it will route video and audio to the tv. I think what you need is a lightning to hdmi and audio adapter.
I thought that’s what he wanted to see and hear on his Tv just like I’d like I’d like to see ST3 on my large Tv and play background music and so it plays through my speakers and shows me the interface as I use it on my small device, this should be available on all tvs and devices without question , why are things always so complicated? Every brand and model seem to be different?. As far as I’m concerned they can all rename their tvs to DUMB TVs there is nothing smart about them apart from being very capable of confusing the customer and emptying their pockets, more than half the crap on all my tvs I don’t need and never use but simply playing an audio file of a portable device it is virtually impossible, great stuff SONY , PANASONIC, SAMSUNG and all the rest of you, you know who you are,
Sorry guys I had to let off some steam I’ve just spent the whole morning trying to do this on SONY 86 inch dumb Tv and apparently I need to use android devices to be successful APPLE products apparently don’t exist, so I gave them a piece of my mind,
I feel better now, I think my next Tv will be a totally unknown brand and will probably do everything for me and cost me half the money.
It seems I never learn.
Remember you’re not alone and keep on rockn.