Open the Automator App... Click on the Action button.... Click on Movie... Drag the 'Get 'Specified Movie' action to the right column (drag and drop your video(s) here)... Drag the "Add Color Profile' action below the 'Specified Movie' action... Set the Source to HD (Rec. 709) and Export on: to Mac... hit run.
You can batch more than one video at a time. If you need to save this, save it as a workflow.
(Click on images to enlarge.)