Those timing values are for powerstrip. The moninfo program is intended to be used in conjunction with powerstrip not the nvidia drivers. You will need to download and install powerstrip to be able to use them.
What that information does show you is your TV will operate at 1920x1080 interlaced with the powerstrip refresh rate set to 30hz. Also it will support 720 x 480p at 60Hz as standarrd which is good for DVD video.
I have the same TV and I know it will also do other resolutions. I have an ATI 7500 Radeon video card, the DNA modified Catalyst drivers and powerstrip installed. nvidia card you are on your own.
Here are the resolutions the TV will do:
720 x 480p at 60Hz
960 x 540p at 60Hz
1440 x 540p at 60Hz
1920 x 1080i at 30Hz
Breakdown of the paramerers for powerstrip:
Modeline................ "1920x1080" 74.250 1920 2008 2052 2200 1080 1084 1094 1124 interlace +hsync +vsync
74.250 = pixel clock
1920 = video memory pixel width
2008 = add 88 pixels for front porch
2052 = add 44pixels for sync width
2200 = add 148 pixels for back porch = total horizontal pixels
1080 = video memory pixel height (scan lines)
1084 = add 4 lines for front porch
1094 = add 10 more lines for sync width
1124 = add 30 more lines for back porch = total vertical pixels
You can try plugging in the values shown and see what happens. Some drivers will not let you enter the numbers exactly as they calculate what values should be for a given resolution. Normally what you do with powerstrip is use the string returned by moninfo to set the powerstrip timings to bypass the manual entry. It may be you can't get the values to match exactly due to the way your nvidia card works. It should work the same with the nvidia card and powerstrip except maybe slightly different values.