Google Adds Autoplay Video to Search Results Page and now, it’ll begin autoplaying a video in the knowledge panel on the right side of the results.
There are a couple of ad blockers and browsers do preventing the video from being played automatically. While for others, it will start autoplaying exclusive of any prompt from the searcher at all, such as with Internet Explorer.
Videos will get played with the sound tuned off automatically and you need to click for the video to be heard. It’ll only autoplay once and does not replay infinitely.