I am hoping that videos are stored on SharePoint and I can somehow get the original back?
@Rhonda NicholsonSorry, no chance! The Stream videos are stored in an Azure Blob Storage and not in SharePoint, so no versioning! And the trimed video original is also not in the recycle bin of Stream. Once you trim a video, the original video is replaced with the new one. See topic 4 here: https://docs.microsoft.com/en-us/stream/portal-edit-trim#trim-a-video