diff --git a/README.md b/README.md
index 0b40f7f3..1ea376d6 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,7 @@ All data is stored in the [/data](data) folder as [CSV](https://en.wikipedia.org
 | Field          | Description                                                                                                                                                                                                      | Required | Example                        |
 | -------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------- | ------------------------------ |
 | id             | Unique channel ID. Should be derived from the name of the channel and country code separated by dot. May only contain Latin letters, numbers and dot.                                                            | Required | `AnhuiTV.cn`                   |
-| name           | Official channel name in English. May include: `a-z`, `à-ÿ`, `0-9`, `space`, `-`, `!`, `:`, `&`, `.`, `+`, `'`, `/`, `»`, `#`, `%`, `°`, `$`, `@`, `?`, `(`, `)`.                                                           | Required | `Anhui TV`                     |
+| name           | Official channel name in English. May include: `a-z`, `à-ÿ`, `0-9`, `space`, `-`, `!`, `:`, `&`, `.`, `+`, `'`, `/`, `»`, `#`, `%`, `°`, `$`, `@`, `?`, `(`, `)`.                                                | Required | `Anhui TV`                     |
 | native_name    | Channel name in the original language. May contain any characters except `,` and `"`.                                                                                                                            | Optional | `安徽卫视`                     |
 | network        | Name of the network operating the channel.                                                                                                                                                                       | Optional | `Anhui`                        |
 | country        | Country code from which the channel is transmitted. A list of all supported countries and their codes can be found in [data/countries.csv](data/countries.csv)                                                   | Required | `CN`                           |
@@ -29,8 +29,10 @@ All data is stored in the [/data](data) folder as [CSV](https://en.wikipedia.org
 | languages      | List of languages in which the channel is broadcast separated by `;`. A list of all supported languages and their codes can be found in [data/languages.csv](data/languages.csv)                                 | Required | `zho`                          |
 | categories     | List of categories to which this channel belongs separated by `;`. A list of all supported categories can be found in [data/categories.csv](data/categories.csv)                                                 | Optional | `general`                      |
 | is_nsfw        | Indicates whether the channel broadcasts adult content (`TRUE` or `FALSE`)                                                                                                                                       | Required | `FALSE`                        |
+| launched       | Launch date of the channel (`YYYY-MM-DD`)                                                                                                                                                                        | Optional | `2016-07-28`                   |
+| closed         | Date on which the channel closed (`YYYY-MM-DD`)                                                                                                                                                                  | Optional | `2020-05-31`                   |
 | website        | Official website URL.                                                                                                                                                                                            | Optional | `http://www.ahtv.cn/`          |
-| logo           | Logo URL. Only URL with HTTPS protocol are allowed. Supported image types: `PNG`, `JPEG`.                                                                                                                                                              | Optional | `https://example.com/logo.png` |
+| logo           | Logo URL. Only URL with HTTPS protocol are allowed. Supported image types: `PNG`, `JPEG`.                                                                                                                        | Optional | `https://example.com/logo.png` |
 
 ### categories