LG’s OLED Flex (LX3), a bizarre 42-inch TV that can transform between a curved and flat TV at the push of a button, now has an official price and release date. The South Korean tech giant says it’ll be available in October for $2,999. Alongside it, the company has also announced pricing for the massive 97-inch version of its G2 OLED TV, which costs $24,999 and is available now, as well as the LG OLED Posé (LX1) lifestyle TV, which costs $1,999 for the 55-inch model that’s available…