Countdown Episode #12.17 (1982– ) Online
- Original Title :
- Episode #12.17
- Genre :
- TV Episode / Game Show
- Year :
- 1982–
- Cast :
- Richard Whiteley,Cathy Hytner,Jon Marsh
- Writer :
- Armand Jammot
- Type :
- TV Episode
- Time :
- 30min
- Rating :
- 6.8/10
| Episode credited cast: | |||
 | Richard Whiteley | - | Himself - Host |
| Rest of cast listed alphabetically: | |||
| Cathy Hytner | - | Herself - Letters Hostess |
| Jon Marsh | - | Himself - Contestant |
 | Patrick Mower | - | Himself |
 | Carol Vorderman | - | Herself - Hostess |