Dealing with Samsung over the issue is a lost cause. Both Samsung and Radiolia simply don't care don't care about the issue.
Thanks for that info.
What you're wanting however goes against best practice around the world however, and for that reason it will never change. If the content is in 5.1 it's broadcast in 5.1, if it's in 2ch stereo it's broadcast as a 2ch stereo feed. I'm personally not one for "simulated" audio.
Some 2.0 audio has matrix encoded channels.