Over the past year, England’s almost century-old media powerhouse the BBC has been searching for the most innovative digital media startups based in London through its year-old accelerator program BBC Labs. And on Monday night, at an event in the offices of Wayra, BBC Labs announced its second class of six London-based digital media startups that will enter into the accelerator program. The companies range from a startup making a branded captcha, to a new freelancer portfolio site, to video image recognition software.