<page_title> Supernatural (U.S. TV series) </page_title> <section_title> Ratings </section_title> <table> <cell> 4 <col_header> Season </col_header> <col_header> Date </col_header> </cell> <cell> September 18, 2008 <col_header> Network </col_header> <col_header> Date </col_header> </cell> <cell> 3.96 <col_header> Episodes </col_header> <col_header> Viewers (millions) </col_header> </cell> </table>
The fourth-season premiere aired on September 18, 2008, averaging its rating with 3.96 million viewers.