YouTube said it would comply with Viacom's request on Friday to pull more than 100,000 clips, which have accounted for 1.2 billion or so video streams.
Viacom said YouTube and parent company Google have not followed through on their promise to provide filtering tools that would let Viacom (and others know) when copyright-infringing vides have been uploaded, writes Broadcasting & Cable (via MediaBuyerPlanner).
Last year, Viacom asked YouTube to remove clips from Comedy Central and other shows, but Friday's demand is all-encompassing, including clips from Viacom channels such as MTV, VH1 and Nickelodeon.
YouTube said in a statement, "It's unfortunate that Viacom will no longer be able to benefit from YouTube's passionate audience which has helped to promote many of Viacom's shows."
YouTube prohibits users from uploading copyright-infringing material and has said it cooperates with rights holders to make sure that such content is removed.