August 1936, and the BBC prepares for the world's first high-definition television service. However, behind the scenes at Alexandra Palace complications arise in more ways than one.
| Name | Type | Role | |
|---|---|---|---|
| Jack Rosenthal | Writer | ||
| David Giles | Director | ||
| Shaughan Seymour | Actor | Cecil Madden | |
| Nicholas Farrell | Actor | David | |
| Nicola King | Actor | Wendy |