Video Highlight are links to videos posted on social media networks. It can contain videos of Goals, Cards or other Events. Sometimes a video compilation of events is provided.
Video Highlights is a community feature, which basically means we have no control over the availability of videos. So, we cannot guarantee the video you are looking for is available.
Highlights are often used as an Include for the Fixture endpoint, but you can use Fixture als as an Include for the Highlight endpoint.