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:
| Position | Channel | Analogue terrestrial channel | Digital terrestrial channel | Internet |
| --- | --- | --- | --- | --- |
| 1.0 | BBC One | 1 | 1 50 (HD) | bbc.co.uk |
| 2.0 | ITV | 3 | 3 33 (+1) 51 (HD) | ITV - itv.com |
| 3.0 | BBC Two | 2 | 2 | bbc.co.uk |
| 4.0 | Channel 4 | 4 N/A (in Wales) | 4 8 (in Wales) 13 (+1) 52 (HD, not Wales) | channel4.com |
| 4.0 | S4C | N/A | 4 (in Wales) 53 (HD, in Wales) N/A (rest of UK) | s4c.co.uk |
| 5.0 | Channel 5 | 5 | 5 44 (+1) | N/A |
| 6.0 | ITV3 | N/A | 10 | itv.com |
| 7.0 | ITV2 | N/A | 6 27 (+1) | itv.com |
| 8.0 | E4 | N/A | 28 29 (+1) | e4.com |
| 9.0 | Sky Sports 1 | N/A | N/A | skysports.com |
| 10.0 | Sky1 | N/A | N/A | sky.com |
| 11.0 | CBeebies | N/A | 71 | bbc.co.uk |
| 12.0 | ITV4 | N/A | 24 | itv.com |
| 13.0 | BBC Three | N/A | 7 | bbc.co.uk |
Question:
How many digital terrestrial channels are there for channel 4?
Answer:
1.0