Complex sentence: The series debuted on CBS during the 2014--15 television season, airing Thursday nights at 9:30 pm (ET/PT)/8:30 pm (CT), and aired from October 30,2014 to July 11,2015.
Split into simpler sentences: The series debuted on CBS during the 2014--15 television season, airing Thursdays at 9:30 pm (ET/PT)/8:30 pm (CT). It aired from October 30,2014 to July 11,2015.