Sanyo LCD TV as 2nd Monitor flicks to black & pops

Hey All,
2.66 Mac Pro running Mavericks 10.9. I plugged in my Sanyo DP42849 via HDMI using a(n admittedly third party) Mini DisplayPort to HDMI converter dongle. I should mention, I've never attempted to use this TV as a 2nd monitor, but I have used the same dongle and a Panasonic 1080p 42" tv with no issue (albeit not on Mavericks)
When I plug it in, if it recognizes the signal at all, it alternates between the desktop background for anywhere from 0-4 seconds, and black for 0-5 seconds. Inconsistently, sometimes there will be a signal pop coming from the TV.
Is this a TV issue? A Mavericks issue? A dongle issue? A Graphics Card issue? What's going on here?
I have tested 2 different HDMI cables (same result), but I only own one dongle.
When I go to the displays menu, refresh rate is greyed out, and changing the resolution does nothing towards stabilizing the signal on the TV.
Thanks for your help!!

Well the lcd that I provided the link for would be the production monitor to hopefully see how a television would view the finished product. I've got my eye on something like the Acer AL1916W - 19" LCD WideScreen for my widescreen #2 monitor. *just in case I confused anyone. As you suggested though, I will be researching more for the # monitor. Thanks again.

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Well the lcd that I provided the link for would be the production monitor to hopefully see how a television would view the finished product. I've got my eye on something like the Acer AL1916W - 19" LCD WideScreen for my widescreen #2 monitor. *just in case I confused anyone. As you suggested though, I will be researching more for the # monitor. Thanks again.

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Eldric, did you update to the latest video driver from nVidia? It sounds to me like a driver problem. Update and let us know if that solves your problem.
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Sanyo LCD TV as 2nd Monitor flicks to black & pops

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