Monitors with Built In Center Channels

TV speakers are never going to be a useful center channel with two decent main speakers by their side.

I do believe center channel speakers are a good idea, moderately, especially with dialogue inteligibility, but given a choice between just L and R, vs. L, R and TV speakers for center, I'd go with the former.

well, we all hear differently, but I've tried not using a center and I can't understand dialog at all.  I have found the existance of the center channel, and then the positioning  of that channel,crucial to understanding speech.
  I also didn't interpret the review as sayingthat the TV MOnitor was vastly inferior to the front speaks, but as relatively close.  Considering that I am asking it to do one thing-transmit speech only-- relatively close might carry the day.  I guess that I need to find a dealer that sells this and see what I think in the showroom, and hope that the trial is a reasonable approximation of what I have at home.  I have found in the past that discussing sound issues with TV Sales People is a lost cause

Any surround system: dolby 5.1 encoded content (or 7,1 ....)

There is separate dedicated content delivered ONLY to the center channel signal. No center content will exist without a center channel speaker.

Phantom center from main L & R, the world's best speakers, will not include a great deal of information, and a great deal of the dialog.

Adulterated content, messed about with by the provider or cable company perhaps, could have started as 2 channel stereo, been weirdly processed, and will often benefit from changing your AVR to 2 channel stereo mode. That's because there is no dedicated center to leave out.

My dealer told me that he has another customer who is also interested in the same issue, and since the dealer now is carrying Sony TVs, he ordered one of the models for a demo and will call me for a visit.  I will report back