Yesterday, Sony announced an 84-inch TV with the resolution of four HDTVs put side by side – a bounty of over eight million pixels on a single TV display that has come to be known in the industry as “4K resolution.” Not to be outdone, today at IFA 2012 in Berlin Toshiba announced the Quad Full HD, an entire line of 4K televisions with screens up to 84 inches in size.