Amazon has signed a licensing agreement with Viacom that allows Amazon Prime members to stream television shows from a multitude of channels. The deal, which gives customers access to programmes from MTV, Comedy Central, Nickelodeon, TV Land, Spike, VH1, BET, CMT and Logo, boosts Amazon’s online library by 15% to more than 15,000 instant videos. The financial terms of the contract were not disclosed, but as the etail giant continues to build its content to match that of rivals like Netflix, there is growing speculation that it may look to launch a standalone service for its US customers.