I want to hire a sound mixer for post, but he knows nothing of 3 channel stereo.

[Razz16mm]

But LCR are 3 of the 5.1 channels. And LCR arrays were seen back in the 1930s. But is there ANY contemporary video distribution format that supports 3.0?

No an LCR performing arts system is not the same as 5.1 encoded LCR. 5.1 encoding puts the center channel content out of phase so it can be derived as a discrete channel from the left/right audio outputs of a DVD player.
LCR panning consoles sum left and right for a center mono output, but phase remains normal. 5.1 played through an LCR console without a surround decoder results in left&right summed signals canceling out the center channel content. Similar to what happens if you play 5.1 in surround mode without a center speaker.

 

[simonpwood]

I'm not sure I follow this trolling thing. He asked about LCR (most had never heard of it...including myself) and I learned that there was in fact LCR and what it is and how it works. How is that a troll post for the purpose of eliciting negative responses? Actually, the "troll" name calling is a personal attack and the posts that scream "troll" can be considered trolls in that they are designed to elicit negative responses and are combative. I don't get it.

Mhood; this one question by itself does not seem like he is trolling. But have a look at all the numerous weird threads he has started where some friend/collegue/hired person informs him he has to do this weird task/format etc. There is a definite pattern here. Have a look at the answers he gets, and then how he changes direction. Have a look at the link I posted earlier where a respected poster here showed how he was trolling in other threads. Then make up your mind.

Something is off.

 

[maranfilms]

I think Ironpony is either very young, and misinterprets the info he receives, or is home laughing his ass off, watching the unsuspecting, but kind folks here take the time to post serious and well thought out answers to his vague "he said, she said, threads". But as long as people continue to answer his questions, he will continue to post. Take away the audience and the shows over!