First draft
Episodes were shown on 31 May as follows:
| Episode | Year |
| EF0361 | 1977 (Series 5) |
| EF0532 | 1979 (Series 7) |
| EF0807 | 1983 (Series 11) |
| EF0884 | 1984 (Series 12) |
| EF1355 | 1989 (Series 17) |
| 01459 | 1990 (Series 18) |
| 01873 | 1994 (Series 22) |
| 02700 | 2000 |
| 02928 | 2001 |
| 03190 | 2002 |
| 03755 | 2004 |
| 04063 | 2005 |
| 04376 | 2006 |
| 04691 | 2007 |
| 05934 | 2011 |
| 06252 | 2012 |
| 06253 | 2012 |