Using hbomax.com/tvsignin, how do you activate HBO Max on Roku?

On Roku, HBO Max is now available.

HBO Max is a streaming service that is owned by WarnerMedia and is an American subscription video-on-demand service.

HBO Max brings together all of HBO for more of your favourite TV shows, as well as new Max Originals and hit films. It comes with 10,000 hours of premium video content for the whole family to enjoy. HBO Max is available via a variety of television and internet providers.

HBO, New Line Cinema, The CW, Cartoon Network, TBS, TNT, Crunchyroll Turner Entertainment, Warner Bros., and others are among the first-party on-demand video service providers on HBO MAX.

Third-party on-demand video content is available from companies including BBC Studios, Paramount Pictures, Comedy Central, Sesame Workshop, ITV, DreamWorks, Universal Pictures, and Walt Disney Pictures, among others.