Magnum P.I. is a U.S. television program broadcast on Ion Television since Friday, February 14, 2025. Magnum PI is watched by a total number of 515,000 people (0.16% rating, down -27% from September 19) as of the daily audience measurement on . Magnum PI is also shown on NBC since February 2023, and was previously shown on CBS until July 2022. Magnum P.I. stars Jay Hernandez (47), Perdita Weeks (40), Zachary Knighton (47), Stephen Hill (50), Amy Hill (72), and Tim Kang (52).
Demographic breakdown of the most recent historical ratings of Magnum P.I. on Ion Television as of Friday, November 21, 2025.
| Magnum PI Daily Ratings | |||
|---|---|---|---|
| Date | Demo | Audience | Rating |
| 2025-Nov-21 R | HH | 436,000 | 0.34 |
| P2+ | 515,000 | 0.16 | |
| P18-49 | 107,000 | 0.08 | |
| P25-54 | 104,000 | 0.08 | |
| 2025-Sep-19 R | HH | 544,000 | 0.42 |
| P2+ | 704,000 | 0.22 | |
| P18-49 | 71,000 | 0.05 | |
| P25-54 | 107,000 | 0.09 | |
| 2025-Sep-12 R | HH | 510,000 | 0.40 |
| P2+ | 621,000 | 0.20 | |
| P18-49 | 83,000 | 0.06 | |
| P25-54 | 117,000 | 0.09 | |
| 2025-May-09 R | HH | 560,000 | 0.45 |
| P2+ | 706,000 | 0.22 | |
| P18-49 | 104,000 | 0.08 | |
| P25-54 | 115,000 | 0.09 | |
| 2025-Apr-25 R | HH | 503,000 | 0.40 |
| P2+ | 594,000 | 0.19 | |
| P18-49 | 56,000 | 0.04 | |
| P25-54 | 82,000 | 0.07 | |
| 2025-Apr-18 R | HH | 470,000 | 0.37 |
| P2+ | 597,000 | 0.19 | |
| P18-49 | 66,000 | 0.05 | |
| P25-54 | 83,000 | 0.07 | |
| 2025-Apr-11 R | HH | 467,000 | 0.37 |
| P2+ | 578,000 | 0.18 | |
| P18-49 | 72,000 | 0.05 | |
| P25-54 | 100,000 | 0.08 | |
| 2025-Apr-04 R | HH | 495,000 | 0.39 |
| P2+ | 600,000 | 0.19 | |
| P18-49 | 74,000 | 0.06 | |
| P25-54 | 106,000 | 0.09 | |
| 2025-Feb-14 R | HH | 499,000 | 0.40 |
| P2+ | 666,000 | 0.21 | |
| P18-49 | 92,000 | 0.07 | |
| P25-54 | 131,000 | 0.11 | |
| Rank | Program | Audience | Change |
|---|---|---|---|
| 1 | Law & Order: Special Victims Unit | 860,000 | +243% |
| 2 | NCIS | 814,000 | -17% |
| 3 | Blue Bloods | 675,000 | +18% |
| 4 | Chicago PD | 581,000 | +10% |
| 5 | Chicago Fire | 529,000 | -15% |
| 6 | Magnum PI | 515,000 | -27% |
| 7 | FBI | 505,000 | -14% |