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:
| No. overall | No. in series | Family/families | Location(s) | Original air date |
| --- | --- | --- | --- | --- |
| UK36 | 1.0 | The Murphy Family and The Laws Family | North London & High Wycombe | 6July2011 |
| UK37 | 2.0 | The Ryder Family and The Schwartz Family | Hull & East London | 13July2011 |
| UK38 | 3.0 | The Reynolds Family and The Simpson Family | Reading & Ilford | 20July2011 |
| UK39 | 4.0 | The Abbas Family and The Pickering Family | Surrey & Hondo, TX | 27July2011 |
| UK40 | 5.0 | The Haynes Family and The Potter Family | Cardiff & West London | 3August2011 |
Question:
how many original air date where family/families is the ryder family and the schwartz family
Answer:
1.0