Doctor Who: What do "time windows" mean for series 13?

In this week's RadioTimes.com Doctor Who podcast we delve into the latest leaks and rumours concerning series 13, with a new graphic novel synopsis hinting at a surprise Torchwood tie-in during the upcoming episodes. Will Captain Jack be back? Is this a tease for a major series arc, and what is a "time window" in Doctor Who anyway? Delving into the series' past and future, we try to find out... For all the latest TV, movie and entertainment news, interviews, comment and analysis visit: http://www.radiotimes.com/ You can follow us on Flipboard: https://flipboard.com/@RadioTimes  Like our page on Facebook: https://www.facebook.com/radiotimes/ Follow us on Twitter: https://twitter.com/RadioTimes And we're here on Instagram: https://www.instagram.com/radiotimes/?hl=en Hosted on Acast. See acast.com/privacy for more information. Learn more about your ad choices. Visit podcastchoices.com/adchoices