It’s on the Now Playing screen for the TV room.  Scroll up on the room at the bottom of the screen.  Tap the TV room.  Then double tap the room at the bottom to get the TV room Now Playing screen.

Yup, there it is.   I just did not scroll up where I saw the slider for TV volume.   So simple, but often the simple things are overlooked when there are no instructions!

Thanks  so much for your help.   You just saved me a 70 minute wait on the phone for customer support!

Not for me. It’s just ‘gone’ and it’s really frustrating 

Nothing shows either on my app now

Drag up from the bottom of the home screen and select the room/speaker for your soundbar. In the home screen you will now see TV under Your Sources. Tap it. That screen should show a TV icon, and beneath that Night Sound button and Speech Enhancement.

Are you not seeing that?

(And when did you last update your app?)

Also there’s a bug with the app. You have to open and close it 4 or 5 times to see it sometimes. 

With the new app updates it’s gone now as far as I know (and only visible on now playing as mentioned on this thread) - but unfortunately a bug was introduced where it’s not retaining the speech enhancement setting permanently and every few days randomly it’ll just be toggled off. The team said they’re investigating - more details on this thread: 

Is there a reason speech enhancement won’t turn on now?  Can’t seem to find a reason why it won’t work anymore….thanks!

I have the same issue. It is off and it won’t let me turn it on. This just happened recently in the last couple of days. 

Yep, same here. I’ve got an Arc

I ended up unplugging my Beam and restarting the app. After that, it was available again. The old “shutdown and restart” method holds true once again.