import copy


def clean_show_data(shows):
    """
    This function cleans the data of a list of shows

    Parameters:
        shows (list): A list of shows

    Returns:
        (list): The list of shows with clean data
    """
    show_copy = copy.deepcopy(shows)
    for show in show_copy[1:]:
        show[1] = show[1].split('/')
        show[2] = show[2].split('/')
        show[3] = float(show[3])
    return show_copy