"In 2013 the average UK screen size in the UK was 36.8 inches (diagonal). At this time Sharp was predicting that by 2015 the average screen size would be 60". Here we are in 2015 and the latest BARB research suggests that the majority of UK homes own a main screen in the 35-50" range. Only some 3% of homes have a 51"+ size screen."For me that's the hard reality of the dimensions of the average UK home. As I walked the other night around the streets where I live I was amazed to see how many large panels are bolted (too) high on living room walls, but I reckon few if any are over 50 inches. Living rooms just aren't big enough, and no-one really likes sitting in the front row of the cinema, do they? Worst seat in the house.
So 4K to my mind will only become dominant if it comes with a telly whether you want it or not. Much like 3D, broadcasters will struggle with the bandwidth requirements and lack of content, and in a market where DVDs still outsell Blu-Ray discs the appetite for greater than 1080p resolution is questionable, especially if it comes at a premium.
There's more to 4K than just packing in the pixels, but I can't see people upgrading solely to get the upscaled content and odd BT or Sky channel.