Missed this on my first read-through:
The PC Mag review uses the same HQV benchmarks as CNet.
While CNet failed the 750 on the 1080i film resolution test, PC Mag
By default, the TV's film-mode detection is disabled, and enabling it helped the set to properly and quickly detect 24p-sourced material (most films and digital cinema). This feature also reduced some slight line flicker and moiré artifacts that were most noticeable in panning shots. In fact, the LN52A750 delivered one of the highest scores on the HQV Benchmark test DVD I've recorded to date
The Audioholics review
also said it does well in this configuration.
I am more convinced than ever that CNet forgot to set Film Mode to Auto.