A stage, placed in a booth, wrapped in a riddle, inside an enigma — in the Las Vegas Convention Center.

This is 90 on 90.

Stories of the moment:

• Sony CEO Kaz Hirai wants 4K standard; disc format unlikely, but not out of the question
• Netflix and Samsung stream 4k video to a mysterious UHD TV
• Valve's Steam Box gets big push at CES as Gabe Newell meets with major hardware partners