Answer the following Q with stream of consciousness. Passage: The eighth season of The Walking Dead, an American post-apocalyptic horror television series on AMC, premiered on October 22, 2017, and concluded on April 15, 2018, consisting of 16 episodes. Developed for television by Frank Darabont, the series is based on the eponymous series of comic books by Robert Kirkman, Tony Moore, and Charlie Adlard. The executive producers are Kirkman, David Alpert, Scott M. Gimple, Greg Nicotero, Tom Luse, and Gale Anne Hurd, with Gimple as showrunner for his fifth and final season. The eighth season has received positive reviews from critics.

Question: Based on this passage, when does season 8 start for the walking dead?
This is the relevant information: The eighth season of The Walking Dead, an American post-apocalyptic horror television series on AMC, premiered on October 22, 2017, and concluded on April 15, 2018, consisting of 16 episodes. Therefore, the final answer is October 22 , 2017.