Sony has nailed down the final launch details for its newest 4K Bravia TVs, and surprise — they just might be affordable this year. The entry-level XBR-X850B series will start at a relatively frugal $2,099 for a 49-inch model, with prices peaking at $5,499 for a 70-inch set. If youve got a bit more cash and want upgrades to both audio and wall mounting, the XBR-X900B line starts at $3,999 for a 55-inch set and scales up to $8,999 for a 79-inch variant.