Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Episode | Broadcast date | Run time | Viewers (in millions) | Archive |
| --- | --- | --- | --- | --- |
| " Episode One " | 24February1973 | 23:27 | 9.1 | PAL 2" colour videotape |
| " Episode Two " | 3March1973 | 24:10 | 7.8 | PAL 2" colour videotape |
| " Episode Three " | 10March1973 | 24:00 | 7.5 | PAL 2" colour videotape |
| " Episode Four " | 17March1973 | 23:35 | 7.1 | PAL 2" colour videotape |
| " Episode Five " | 24March1973 | 23:57 | 7.7 | PAL 2" colour videotape |
| " Episode Six " | 31March1973 | 24:44 | 8.9 | PAL 2" colour videotape |
| [ dead link ] | [ dead link ] | [ dead link ] | [ dead link ] | [ dead link ] |
Question:
What was the broadcaste date for the episode with a run time of 24:44?
Answer:
31March1973