The fix is pretty simple. Create 2 versions of that clip. One with one audio and one with the other audio.
Select the stream you want by picking which file has the audio you want.
Some folk are confused over these Smart TVs. The confusion is often when they try to do things that we can do on a PC. There is no PC in these TVs and so we get to be a little more creative.
I have a new smart tv and i notice when i stream a video clip that has two auido streams that i cannot choice which one i want. Say DTS and and ac3. is there any way to picj which one i want?