The acclaimed HBO Max series, "It's a Sin," tells the story of a group of gay men and their friends who live and love in London in the early 1980s, at the beginning of the HIV/AIDS crisis. The show, which features a largely LGBTQ cast, shines a light on a dark chapter that's been fading from memory. Correspondent Imtiaz Tyab talks with the show's producer-writer, Russell T. Davies, and with two of its stars: Neil Patrick Harris and Lydia West. "CBS Sunday Morning" features stories on the arts, music, nature, entertainment, sports, history, science and Americana, and highlights unique human accomplishments and achievements. Check local listings for CBS Sunday Morning broadcast times. Subscribe to the "CBS Sunday Morning" YouTube channel: http://bit.ly/20gXwJT Get more of "CBS Sunday Morning": http://cbsn.ws/1PlMmAz Follow "CBS Sunday Morning" on Instagram: http://bit.ly/23XunIh Like "CBS Sunday Morning" on Facebook: https://bit.ly/3sRgLPG Follow "CBS Sunday Morning" on Twitter: http://bit.ly/1RquoQb Subscribe to our newsletter: http://cbsn.ws/1RqHw7T Download the CBS News app: http://cbsn.ws/1Xb1WC8 Try Paramount+ free: https://bit.ly/2OiW1kZ For video licensing inquiries, contact: licensing@veritone.com