JB Perrette Dimitrios Kambouris/Getty Images for Warner Bros. Discovery Share on Facebook Share on X Google Preferred Share to Flipboard Show additional share options Share on LinkedIn Share on Pinterest Share on Reddit Share on Tumblr Share on Whats App Send an Email Print the Article Post a Comment HBO Max's highly anticipated Harry Potter series, coming to the streamer in 2027, will be "the streaming event of the decade," maybe even the biggest event in streaming history, JB Perrette, CEO and president of global streaming & games at Warner Bros. Discovery said in London on Monday.