Sony has unveiled its first BRAVIA 4K LCD TV XBR-84X900 at this year's IFA consumer electronics event in Berlin. After much speculation earlier in the week, Kazuo Hirai, President and Chief Executive Officer at Sony, revealed the breakthrough television at Berlin's IFA, which opens to the public August 31.

The 84 inch TV can display a huge 4,096x3,072 pixels -- four times the number in a normal HD -- a display which is known as 4K, features long vertical speakers on either side of the screen and has 3D capabilities.

According to the announcement, the TV will be available "by the holiday season" though no exact dates or pricing details were given.

LG debuted what it claimed was the world's first 84 inch Ultra Definition 3D TV at an event in Seoul on August 22.