A logger or annotator views video in a window or user interface (UI) of a computing device and enters time-stamped metadata or commentary; that metadata or commentary is then automatically displayed on a timeline or other time-based index in a different window or user interface of a second computing device used by a viewer or editor of that video. The metadata or commentary is represented by a marker or icon appearing on a timeline displayed in the window or user interface of a second computing device, and the metadata or commentary is shown when the viewer or editor selects that marker or icon.