The Sony R510C LED TV has great blacks, but only from directly in front. As soon as you are off-axis, the blacks become gray. It has the most limited viewing angle that we have measured so far.
Not only do the colors desaturate at an angle, but the blacks become gray even faster. Even if you are sitting straight in axis, it can be an issue on the left and right side of the TV.
Update 01/06/2017: We have changed the methodology of testing. Since this is an old TV which we don't have anymore, we extrapolated the results from 2016 TVs.
This is very interesting. It actually has the best black uniformity that we have ever seen, but due to its very narrow viewing angle, the blacks on the left and right side appear considerably brighter. The picture was taken at seven feet (we test TVs at a 1.75 ratio of size to distance). For the 48", you will need to be at about 14 feet to not see this.
The blur trail of moving objects is short. It also has a strobing mode to clarify the picture, although it doesn't work very well (see picture here).
The picture mode doesn't really matter for the input lag. Game had 45.8 ms and the other ones had 46.5 ms.
This TV doesn't produce a lot of bass, but it does get loud. The frequency response is good at lower volumes, but it falls apart when the TV is pushed hard. There will also be significant compression and pumping artifacts present at high volumes.