A "one-time show" is similar to an open listing in many respects, as it is most often used by real estate agents who are showing a FSBO (for sale by owner) to one of their clients.

The home seller signs the agreement, which identifies the potential buyer and guarantees the agent a commission should that buyer purchase the home. This prevents the buyer and seller from negotiating directly later and trying to avoid paying the agent's commission.

As with an open listing, agents will not be spending money on marketing your home and it will not be placed in the Multiple Listing System.