NEW YORK (AdAge.com) -- Outgoing NBC Universal digital chief George Kliavkoff doesn't think much of the online video search engines of competitors ABC and CBS. In his on-stage comments at the recent MIEG breakfast in New York, he boasted about how Hulu is much better at finding ABC and CBS content. Hulu, a joint venture of NBC and Fox, is only nine months old but has become the internet's third most heavily trafficked video search engine.