CNET didn't review the LG 60LM7200, but we did review the LG LM7600 series, which is very similar according to LG's Web site.
The main difference between the two, again according to LG's Web site, is that the LM7200 has a slightly lower contrast ratio specification (9,000,000:1 versus 7,000,000:1). Since contrast ratio specs are basically fake, we don't think this difference indicates a major difference in picture quality. In fact, we expect picture quality to be very similar between the two.
Otherwise the two TVs have nearly identical specifications and features.
For more information, please refer to the full review of the LG LM7600 series.