Yellowstone is an American drama television series created by Taylor Sheridan and John Linson that premiered on June 20, 2018 on Paramount Network. It stars Kevin Costner, Wes Bentley, Kelly Reilly, Luke Grimes, Cole Hauser, Dave Annable and Gil Birmingham. The series follows the conflicts along the shared borders of a large cattle ranch, an Indian reservation, land developers and Yellowstone National Park. On July 24, 2018, it was announced that Paramount Network had renewed the series for a second season to air in 2019.

Answer this question based on the passage: when is the tv show yellowstone coming on? OK. Let's think. My stream of consciousness:
The important part for answering this question is: On July 24, 2018, it was announced that Paramount Network had renewed the series for a second season to air in 2019. The answer is 2019.