| `EPG_ID` | Channel ID that is used to load EPG. Must match `id` from the EPG file. (optional) |
| `EPG_NAME` | Channel name that is also sometimes used to load EPG. Must match `<display-name>` from the EPG file. (optional) |
| `COUNTRY` | The code of the country in which the channel is broadcast. The code of the country must conform to the standard [ISO_3166-2](https://en.wikipedia.org/wiki/ISO_3166-2). If the channel is broadcast in several countries you can list them separated by a semicolon. You can also use one of these [region codes](#supported-region-codes). (optional) |
| `LANGUAGE` | Channel language. The name of the language must conform to the standard [ISO 639-3](https://iso639-3.sil.org/code_tables/639/data?title=&field_iso639_cd_st_mmbrshp_639_1_tid=94671&name_3=&field_iso639_element_scope_tid=All&field_iso639_language_type_tid=51&items_per_page=500). If the channel is broadcast in several languages you can list them separated by a semicolon. (optional) |
| `LOGO_URL` | The logo of the channel that will be displayed if the player supports it. Supports files in png, jpeg and gif format. (optional) |