Thanks for the various comments on personal experiences with motion blur.
No interpolation or blanking
One situation to consider is the native blur (i.e. without interpolation or additional blanking). With Australian sport at 50i you're already getting 50 motion updates a second. On my old plasma set I was happy with that. If I activated motion interpolation I started seeing artefacts so I kept motion interpolation off. [That was an early model set so the interpolation algorithm would have been relatively unsophisticated.]
On my even older LCD set (well SXRD, but it was still sample and hold, though with fast grey to grey transition), 50i sport looked ok for my eyes as it was, though 60p sport looked smoother. [That set lacked motion interpolation.]
With interpolation or blanking
Late model plasma sets offered motion interpolation for 50i and 60i sport so (unless purely existing for marketing purposes as a useless gimmick) there must have been an issue for at least some viewers in trying to watch a moving ball or other object at a native 50 or 60 motion updates despite the strobing used by plasma. I note that plasma screen strobing continues repeatedly for the duration of a frame. It's somewhere between the pure sample and hold of LCD, and a single pulse CRT scan.
With interpolation, the motion updates can be increased to 100 a second for a 50i/p source, or 120 a second for a 60i/p source. [Having said that, I'm not sure a 50Hz source is always interpolated to an integer multiple for display at a heightened frame rate. I suspect a multiple of 60 might be used.] The question could then be asked: are 100 or 120 motion updates enough to reduce the blurring on human retina when tracking motion to a negligible level, irrespective of the technology (LCD with sample and hold, plasma with continuous strobing, or OLED with sample and hold)? Or is only 100 or 120Hz combined with plasma strobing that is enough? Or is it actually necessary to go to 200 or 240Hz?
If 100 or 120 motion updates are enough for a particular individual then it may be that individual will have no problem at all with OLED and sport in terms of induced motion blur (i.e. blur induced by human eyes moving smoothly to track motion).
My own eyes detect the 100Hz flicker of fluorescent lighting in Australia at a night-time squash match by way of the stroboscopic flashes I see of the small black squash ball when it is in motion. And I can see the flicker of plasma screens, particularly brighter, later model ones. I can see the effect of poor motion interpolation on 50i sport (specifically the movement of a tennis ball). If I look for it, I can see an occasional rainbow effect on the white lines of a sports field during a camera pan, if shown on a plasma screen with differing decay times for the Red Green and Blue phosphors.
Despite my heightened sensitivity to flicker, I don't seem to have a problem with sample and hold induced motion blur with sport, even with interpolation switched off, using LCD technology. I'm not conscious of it. I'd be surprised if I had a problem as regards motion blur with OLED technology.
Sorry, where did you get 29.19FL from?
The brightest my projector has ever been was 33FL (brand new out of the box with a new lamp) and the brightest projector I have ever calibrated, measured was 42FL on a 120" 16:9 screen post calibration.
I'm now at over 1500 hours on mine, and the best I can get is about 14.5FL before everything goes pear shaped. For a time (under 1000 hours), I did watch at 18 - 20FL with 20FL being too bright for comfort. So based on the conversion, I am just under 500NITs?
All the SONY titles have the Easter Egg? If so, I had better go buy one. The only UHD title I have is Hitman - Agent 47 with is 20th Century Fox, I think.