I am not sure if I've seen a video in the top featured slot of the knowledge panel in Google before. If you search for [oscar nominations] in Google on desktop or mobile, you will see a video thumbnail at the top. Click on it and it will play a video.
This was spotted by Mordy Obertstein and posted on Twitter:
Is this new? If not, how do you get a video in that spot?
Forum discussion at Twitter.