Mark Gatiss learns about discrimination against his Irish ancestors...

Mark travels to Ireland, where he untangles a tale of rags to riches and descrimination. 🚨 SUBSCRIBE FOR MORE 🔔 : http://bit.ly/WDYTYAyt ▶ WATCH MORE WHO DO YOU THINK YOU ARE: http://bit.ly/WDYTYAClips 📺 Oscar Award Winner Kate Winslet 👉 https://bit.ly/KATEWINSL3T 📺 Academy Award-winning actress Olivia Colman 👉 https://bit.ly/0IiviaCoIman 📺 Watch FULL EPISODES of Who Do You Think You Are USA here 👉 https://bit.ly/WDYTYAFULLEPS In each episode, one of Britain's best-loved celebrities traces their family tree to reveal the surprising, extraordinary and often moving stories of their ancestors. We publish new videos twice a week with the most memorable moments from the show. Subscribe now and click on the bell 🔔 to get notifications every time we upload a new video! CHECK OUT THE PODCAST 👉 http://bit.ly/WhoDoPodcast FOLLOW US ON TWITTER 👉   / wdytya_uk   CHECK OUT THE WHO DO YOU THINK YOU ARE WEBSITE 👉 http://bit.ly/WdytyaBBC