PlayStation 4 versus Xbox One: Rival consoles battle it out
21 November 2013 Last updated at 19:45 GMT
The biggest names in gaming technology are going head-to-head in a battle to secure the top spot with games fans.
They are both releasing new devices - Microsoft's Xbox One goes on sale at midnight on Thursday while Sony's PlayStation 4 arrives in the UK next week.
Gaming is big business in Britain, with more than one third of the population playing some form of video game.
The BBC's Rory Cellan-Jones reports.