Knocked It Off by B. A. Robertson first appeared on the Israeli foreign-music chart on 24 Dec 1979, entering at #31. It peaked at #31 on 24 Dec 1979. In total it spent 2 weeks on the chart, last charting on 31 Dec 1979.
| Wk | Date | Pos |
|---|---|---|
| 1 | 24 Dec 1979 | 31 |
| 2 | 31 Dec 1979 | 33 |