New wave of 4 K TVs offers picture four times sharper than HD . Sony is already on the market with a new set for $ 100 . One complaint so far is that there 's not much content available in 4 ##K . Apple , Sharp , Panasonic , Sony and Samsung all have sets in the works .
New wave of 4K TVs offers picture four times sharper than HD . Sony is already on the market with a 84-inch model for $ 25,000 . One complaint so far is that there 's not much content shot in 4K . LG , Sharp , Panasonic , Sony and Samsung all have sets in the works .