def __init__(self, date=YESTERDAY, show=None, network=None, limit=None, final=True):
broadcast_dict = {<EOL>'<STR_LIT>': '<STR_LIT>' if final else '<STR_LIT>',<EOL>'<STR_LIT:date>': date,<EOL>'<STR_LIT>': show,<EOL>'<STR_LIT>': network,<EOL>'<STR_LIT>': limit<EOL>}<EOL>try:<EOL><INDENT>Ratings.__init__(self, **broadcast_dict)<EOL><DEDENT>except Exception:<EOL><INDENT>raise PageNotFoundError(PAGE_ERROR) from None<EOL><DEDENT>
Broadcast shows are shows belonging to the 5 major US broadcast
networks: ABC, NBC, CBS, FOX, and the CW.

Broadcast ratings can be split into two categories: final and
non-final ("Fast-Affiliate"). Non-final ratings are posted earlier
than final ratings.

:param final: Fetch final or 'fast-affiliate' ratings.