Nobody? It's difficult researching this, what with all the proprietary-named marketing-speak all the companies engage in. It's really hard to find straight-forward specs on anything...
Just browse around with this particular model. I hope this is what you want to see, but unless there is a review of the actual working model, I will not buy it. And I do like Toshiba, for I own a Toshiba TW40X81 HDTV, but with all the problems that I have been reading about LCDs, I will wait awhile before buying this time around.
One thing I have noticed in these 120Hz sets is that I don't think any of them actually accept 120Hz input. They simply take the 60Hz signal and internally double it.
I was thinking about getting one of these displays to attach to a PC (among other things) but I am going to wait until they can actually accept a 120Hz signal (assuming that is technically possible).
Of course it's technically feasible, plenty of computer monitors do it. Unfortunately most HDTV manufacturers treat HTPC owners like unwanted step-children. Most 1080P LCDs I have looked at officially support PCs only through a VGA port... (Yes, you can attach them via DVI to HDMI cables, but it is anything but plug and play).
I've been using a DVI equipped Apple Cinema Display for 4+ years, and go back to analog is not an option, and would love dearly a HDTV set set that accepts 120Hz over DVI, but so far no luck.