Now to pre-emptively answer how to leave the speakers on. Nope. Almost no TV does that.
I'm to the age now where I need to listen to the TV with headphones. I have a wireless transmitter that plugs in to the audio out. But, just bought a LG 55UH615A last weekend and there does not appear to be any audio out. Is there an inexpensive way to hook up my wireless transmitter (don't want to have to buy a $100 sound bar just to get an audio out plug)