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 | Date | Time | Network | Length |
| --- | --- | --- | --- | --- |
| One | 7/02/08 | 7:00 PM ET | ESPN2 | 1 Hour |
| Two | 7/21/08 | 7:30 PM ET | ESPN2 | 30 mins |
| Three | 7/31/08 | 7:30 PM ET | ESPN2 | 30 mins |
| Four | 8/05/08 | 7:00 PM ET | ESPN2 | 30 mins |
| Five | 8/05/08 | 7:30 PM ET | ESPN2 | 30 mins |
Question:
What date was the episode that aired at 7:30 pm ET?
Answer:
7/21/08, 7/31/08, 8/05/08