<ul data-eligibleForWebStory="true">Amazon promotes rival streamers to boost Prime Video's profitability and attract more users.Prime Video 'channels' contribute to 25% of US streamer sign-ups, aiming to surpass rivals.Amazon collaborates with streamers like HBO Max and Apple TV+ through its channels program.Prime Video aims to be top TV destination, challenging Netflix and YouTube in engagement.Amazon's channel partners find success and increased subscriptions by being on Prime Video.