def METHOD_NAME():
    """
    Generate a JSON-pickable object with disk space information.
    Collect information on the TV_DOWNLOAD_DIR and the ROOT_DIRS.
    :returns: Object with disk space information.
    """
    locations = {}
    locations['tvDownloadDir'] = {
        'type': 'TV Download Directory',
        'location': app.TV_DOWNLOAD_DIR,
        'freeSpace': get_disk_space_usage(app.TV_DOWNLOAD_DIR)
    }
    locations['rootDir'] = []
    if app.ROOT_DIRS:
        backend_pieces = app.ROOT_DIRS
        backend_dirs = backend_pieces[1:]
    else:
        backend_dirs = []
    if backend_dirs:
        for location in backend_dirs:
            locations['rootDir'].append({
                'type': 'Media Root Directory',
                'location': location,
                'freeSpace': get_disk_space_usage(location)
            })
    return locations