American web TV portal Hulu.com has yanked its content off CBS-owned TV.com following the site's recent relaunch as a potential rival for ad-driven streaming television.

Hulu is a joint venture between media giants NBC and News Corp. Both are CBS competitors, but Hulu signed on to TV.com early as a distribution partner. The pact worked because TV.com focused on being a community site based on user-created content that just happened to offer some syndicated content.

But CBS relaunched TV.com in January, hoping to transform the site from a TV-related fan site to a serious ad-driven web TV portal. The change seems to have worked. According to Nielsen numbers reported by MediaPost, TV.com had a 263 per cent increase in unique viewers that month.

That's apparently rubbed folks at Hulu the wrong way. TV.com users attempting to access Hulu-provided content on the site now get a "video not available" error.