The 3D hype may have died down from its peak a few years ago, but Sir David Attenborough is continuing to make use of the technology (check after the break for a video explaining some of the infatuation with it) for his critically acclaimed nature documentaries. The latest one is Conquest of the Skies 3D, and Sky has announced that the three 60-minute episodes will air around Christmas in the UK. In order to "tell the evolutionary story of flight" Attenborough and crew are using new 3D macroscopic and high-speed filming techniques, as well as 3D octocopters. What it won't have is the Oculus Rift or Project Morpheus-compatible virtual reality version that was bandied about earlier this year, but that doesn't mean the tech is on the shelf. Newly-expanding Sky has teamed up with Atlantic Productions, and Atlantic's new division Alchemy is planning to have VR experiences (that combine live action 3D footage, 360 degree video and CGI) available this fall.