Season 1
Oct 13, 196724 Episodes
Season 2
Sep 15, 196830 Episodes
Season 3
Aug 3, 196935 Episodes
Season 4
Aug 23, 197031 Episodes
Season 5
Aug 29, 197127 Episodes
Season 6
Sep 17, 197225 Episodes
Season 7
Jul 29, 197336 Episodes
Season 8
Oct 8, 197426 Episodes
Season 9
Sep 21, 197534 Episodes
Season 10
Oct 21, 197638 Episodes
Season 11
Oct 13, 197716 Episodes
Season 12
Aug 2, 197826 Episodes
Season 13
Dec 23, 197914 Episodes
Season 14
Jan 13, 198114 Episodes
Season 15
Jan 10, 198217 Episodes
Season 16
Oct 10, 198223 Episodes
Season 17
Oct 16, 198310 Episodes
Season 18
Jun 24, 198411 Episodes
Season 19
Sep 16, 198410 Episodes
Season 20
Apr 26, 198521 Episodes
