Table: grey 's anatomy (season 4)
[['no in series', 'no in season', 'title', 'directed by', 'written by', 'original air date', 'us viewers (millions)'], ['62', '1', 'a change is gonna come', 'rob corn', 'shonda rhimes', 'september 27 , 2007', '20.93'], ['63', '2', 'love / addiction', 'james frawley', 'debora cahn', 'october 4 , 2007', '18.51'], ['64', '3', 'let the truth sting', 'dan minahan', 'mark wilding', 'october 11 , 2007', '19.04'], ['65', '4', 'the heart of the matter', 'randy zisk', 'allan heinberg', 'october 18 , 2007', '18.04'], ['66', '5', 'haunt you every day', 'bethany rooney', 'krista vernoff', 'october 25 , 2007', '18.17'], ['67', '6', 'kung fu fighting', 'tom verica', 'stacy mckee', 'november 1 , 2007', '19.31'], ['68', '7', 'physical attraction , chemical reaction', 'jeff melman', 'tony phelan & joan rater', 'november 8 , 2007', '19.50'], ['69', '8', 'forever young', 'rob corn', 'mark wilding', 'november 15 , 2007', '19.61'], ['70', '9', 'crash into me (part 1)', 'michael grossman', 'shonda rhimes & krista vernoff', 'november 22 , 2007', '14.11'], ['71', '10', 'crash into me (part 2)', 'jessica yu', 'shonda rhimes & krista vernoff', 'december 6 , 2007', '17.78'], ['72', '11', 'lay your hands on me', 'john terlesky', 'allan heinberg', 'january 10 , 2008', '17.68'], ['73', '12', 'where the wild things are', 'rob corn', 'zoanne clack', 'april 24 , 2008', '16.37'], ['74', '13', 'piece of my heart', 'mark tinker', 'stacy mckee', 'may 1 , 2008', '15.31'], ['75', '14', 'the becoming', 'julie anne robinson', 'tony phelan & joan rater', 'may 8 , 2008', '16.03'], ['76', '15', 'losing my mind', 'james frawley', 'debora cahn', 'may 15 , 2008', '15.55'], ['77', '16', 'freedom (part 1)', 'rob corn', 'shonda rhimes', 'may 22 , 2008', '18.09']]
Statement: the first episode had 2.84 million more Viewer than the last episode
Statement: Shonda Rhimes wrote the most episode
Statement: Rob Corn Directed the most episode
Statement: the ninth episode Of The Season had the fewest Viewer
Statement: more than half Of The episode had at least 18 million Viewer