| Answer | Crossword Clue |
|---|---|
| NOVA | PBS series since 1974 |
| NOVA | PBS science series since 1974 |
| NOVA | PBS show since 1974 |
| NOVA | PBS staple since 1974 |
| NOVA | PBS science show since 1974 |
| NOVA | PBS science series introduced in 1974 |
| NOVA | PBS series since '74 |
| NATURE | PBS series since 1982 |
| POV | PBS documentary series since 1988 |
| NOVA | Science series since 1974 |
