It is well known that with most LCDs, off axis viewing has many types of degredation issues depending on the LCD manufacturer, that reviewer is offering nothing new with that comment jumbo size screen or otherwise, IMO.

On a side note I just helped my Father set up his new 60" Sharp, forget the model number, will repost more about his later.

Jason
M80 v2
VP160 v3
QS8 v2
PB13 Ultra
Denon 3808
Samsung 85" Q70