Nielsen Ratings/Television Schedule
| Season | Ep# | Season premiere | Season finale | Timeslot | Rank | Rating | Households |
|---|---|---|---|---|---|---|---|
| 1) 1964–65 | 36 | September 26, 1964 | June 12, 1965 | Saturday nights at 8:30 P.M. | #17 | 24.7 (tie) | 13,227,700 |
| 2) 1965–66 | 32 | September 16, 1965 | April 28, 1966 | Thursday nights at 8:00 P.M. | #19 | 22.4 | 11,900,850 |
| 3) 1966–67 | 30 | September 12, 1966 | April 17, 1967 | Monday nights at 7:30 P.M. | Not in the Top 30 | N/A | N/A |
Read more about this topic: Gilligan's Island