Returns episode from a show info list, of the form e.g. 1x12, 8x04, left padding the episode number to max_length (default 2) if necessary.
ep_number(show_item, max_length = 2)
a show item list, typically from show_info_from_xml
the length to pad episode numbers to, usually 2 is standard.
character of form NxNN
Matt Malin <firstname.lastname@example.org>