| Clue | Source | Date |
|---|---|---|
| Sony videocassette brand developed in 1982 | The Washington Post | 15 Aug 2020 |
| Sony videocassette brand developed in 1982 | LA Times Daily | 15 Aug 2020 |
| Videorecorder from Sony | Wall Street Journal | 08 Dec 2018 |
| Videorecorder from Sony | ||
| Early Sony recorder | New York Times | 30 Jun 2015 |
| Sony video recorder | New York Times | 05 Apr 2015 |
| Sony video recorder | ||
| Early Sony recorder | ||
| Sony recorder |