voice over recording microphone voice over for television, radio commericials, advertisiments, and spots
As an Educational or Descriptive Device
The voice-over has many applications in non-fiction as well. Television news is often presented as a series of video clips of newsworthy events, with voice-over by the reporters describing the significance of the scenes being presented; these are interspersed with straight video of the news anchors describing stories for which video is not shown.

Television networks such as The History Channel and the Discovery Channel make extensive use of voice-overs. On NBC, the television show Starting Over used Sylvia Villagran as the voice-over narrator to tell a story.

Live sports broadcasts are usually shown as extensive voice-overs by expert announcers over video of the sporting event.
Game shows formerly made extensive use of voice-overs to introduce contestants and describe available or awarded prizes, but this technique has diminished as shows have moved toward predominantly cash prizes.

Voice-over commentary by a leading critic, historian, or by the production personnel themselves is often a prominent feature of the release of feature films or documentaries on DVDs.