Template:Radiotimes
Usage
For all external link templates you must fill in certain parts of the template from the web address and name of the story.
{{radiotimes|SECTION OF WEB ADDRESS|Story Name}}
First of all look at the web address for the RadioTimes episode guide, https://www.radiotimes.com/news/2008-09-30/an-unearthly-child/
Take just the story name and date, or everything after "news/". So you would take the following bold section https://www.radiotimes.com/news/2008-09-30/an-unearthly-child/
Then add it into the template along with the story name, giving you this: {{radiotimes|2008-09-30/an-unearthly-child|An Unearthly Child}}
A simplified version {{radiotimes|SECTION OF WEB ADDRESS}} will insert the title of the story from the page the template is used on.
Result
An Unearthly Child at the RadioTimes official site
In the external links it should have a bullet point at the start, so add that at