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A POTD is an acronym for "Photo of the Day", "Picture of the Day", "Post of the Day" or "Poll of the Day". It is a term most commonly used by online digital photography communities as an honor to outstanding photos that are selected daily from among that community's membership. They can either be tagged as POTD or displayed in a special page on that site...

In sports broadcasting, a commentator gives a running commentary of a game or event in real time, usually during a live broadcast. The comments are normally a voiceover, with the sounds of the action and spectators also heard in the background. In the case of television commentary, the commentator is on screen rarely if at all. In North American English, other general terms for a commentator are announcer, presenter, or sportscaster...