I don't get it. Is that what the TruMotion is? I can put it on Normal, Fast, Faster and it looks like everything is speeding but it's still in sync.
Yes that is what TruMotion is. As a basic explination, your TV receives 60 frames every second as input. The TV processor and software then tries to "guess" (interpolate) 3 frames in between every 2 of those frames. This means you get 240 frames every second instead, 60 "real" (or source) frames and 180 "fake" (interpolated or "guessed") frames.
It does this through many algorithms to try and figure out what frames would go in the middle if they existed. For an example look below, and imagine that 0's are a sidewalk, and the 1 is a person walking down said sidewalk. This is what your TV is attempting to do.
Code:
Source Frames:
Frame 1 | Frame 2
10000 00001
-----------------------
120hz Interpolation (Frame 2 is "guessed")
Frame 1 | Frame 2 | Frame 3
10000 00100 00001
-----------------------
240hz Interpolation (Frame 2, 3, and 4 are "guessed")
Frame 1 | Frame 2 | Frame 3 | Frame 4 | Frame 5
10000 01000 00100 00010 00001
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