First draft
Episodes were shown on 19 June as follows:
| Episode | Year |
| EF0070 | 1973 (Series 1) |
| EF0537 | 1979 (Series 7) |
| EF0588 | 1980 (Series 8) |
| EF1059 | 1986 (Series 14) |
| 01464 | 1990 (Series 18) |
| 02219 | 1997 |
| 02941 | 2001 |
| 03203 | 2002 |
| 03469 | 2003 |
| 04391 | 2006 |
| 04706 | 2007 |
| 04707 | 2007 |
| 05016 | 2008 |
| 05326 | 2009 |