Season 1
Feb 3, 195940 episodes
Season 2
Jan 14, 196028 episodes
Season 3
Jan 5, 196119 episodes
Season 4
Jan 3, 196216 episodes
Season 5
Jan 5, 196314 episodes
Season 6
Jan 4, 196420 episodes
Season 7
Jan 2, 196512 episodes
Season 8
Jan 15, 196618 episodes
Season 9
Jan 7, 196715 episodes
Season 10
Jan 6, 196821 episodes
Season 11
Jan 4, 196927 episodes
Season 12
Mar 8, 19706 episodes
Season 13
Mar 13, 19716 episodes
Season 14
Feb 12, 19729 episodes
Season 15
Feb 22, 197310 episodes
Season 16
Feb 2, 197423 episodes
Season 17
Season FinaleJan 4, 19751 episodes