Vivitek H9080FDU Projector: Performance, HDTV and Sports
Only two issues relating to watching HDTV: The firt is the Vivitek's limited brightness. As a result, unless you go with a small screen, you just don't have the lumens to deal with anything but minimal ambient light. With the average brightness of 1080p projectors in the 1000 lumen range, and the brighter ones with modes that can get up to about 1500, the just over 500 lumen best of the Vivitek projector is definitely a bit weak. (Don't forget, though, it won't get dimmer over time, as will projectors with traditional lamp light sources.)
The other issue relates to occasional breakup artifacts I encountered while watching HDTV material. Since this projector is pre-production, that issue may well be solved with full production units. The problem was only spotted a few times, but, with the content recorded, my RS20 was able to show the same sequence where at least one of the visible artifacts seen on the Vivitek, was no where to be found with the JVC.
I got to watch some pre-season football with the H9080FD, and, overall, except for the desire for a fair amount of additional lumens, I was most satisfied. The image is very sharp (though not as sharp as the IN83), and definitely a touch sharper than my RS20.
With the high price tag of the Vivitek, it will almost certainly end up in dedicated home theaters, where really well designed lighting should be able to maintain a decent level of brightness in the room for partying - while watching, even if the projector isn't as bright as I would have liked to see, for general viewing without making the room too dark for the desired ambience when friends are over.