def cleanup_watch(watch):
    """Given a dictionary of a watch record, return a new dictionary for output
    as JSON."""
    
    watch_data = watch
    watch_data["id"] = str(watch["_id"])
    watch_data["author"] = str(watch["author"])
    watch_data["watched"] = str(watch["watched"])
    del watch_data["_id"]
    
    return watch_data