Must See TV
Looking back, America’s viewing habits haven’t changed much over the years — at least as far as network TV is concerned. Long before “American Idol” there was “Arthur Godfrey’s Talent Scouts.” “I Love Lucy” set the bar for sitcoms until “All in the Family” reshaped the genre. And Westerns once dominated the TV landscape that later became crowded with crime and medical dramas. Starting with 1950 — when the Nielsen ratings began — here are the top shows for each season based on data compiled in “The Complete Directory to Prime Time Network and Cable TV Shows.” See where your favorites finished.