Multiple video streams are simultaneously received, with each stream including a plurality of portions. A video comprising a first portion of a first one of the video streams is presented. Prior to completing the presentation of the first portion, a second portion of the first video stream is appended onto the video. Then, prior to completing the presentation of the second portion, a second video stream is selected based on a user interaction received with respect to the video, and a portion of the second video stream is appended onto the video.