| Answer | Crossword Clue |
|---|---|
| INKBLOT | Test pattern? |
| INKBLOT | Test pattern |
| COLORBARS | Test pattern display |
| INKBLOT | Shrink's test pattern |
| INSOMNIAC | One watching a TV test pattern, perhaps |
| RCA | Company that developed TV's Indian Head Test Pattern |
| RCA | Developer of the U.S.'s first TV test pattern |
