16.4 million tuned to watch ER come to an end on Thursday. But locally according to TCPalm.com WPTV had the best ratings of any NBC affiliate in the nation by 33%. WPTV had 14.5/21 share rating for the 10pm hour on Thursday. With 1 ratings point equal to 7,794 TV households that means 113,013 Palm Beach area households tuned ER or 21% of all.
