First draft
Epsiodes were shown on 14 April as follows:
| Episode | Year |
| EF0249 | 1975 (Series 3) |
| EF0348 | 1977 (Series 5) |
| EF0657 | 1981 (Series 9) |
| EF0794 | 1983 (Series 11) |
| EF1140 | 1987 (Series 15) |
| EF1240 | 1988 (Series 16) |
| 01651 | 1992 (Series 20) |
| 01860 | 1994 (Series 22) |
| 02347 | 1998 |
| 02510 | 1999 |
| 03416 | 2003 |
| 03713 | 2004 |
| 04024 | 2005 |
| 04336 | 2006 |
| 04961 | 2008 |
| 05270 | 2009 |
| 05582 | 2010 |
| 05894 | 2011 |
| 05895 | 2011 |