HBO has announced that it will soon have a third streaming service - to sit alongside HBO Now and HBO Go - called HBO Max, which it no doubt hopes will rival the likes of Netflix and Amazon Prime.

HBO Max hasn't launched yet, but here's what we know so far about what to expect.

What is HBO Max?

HBO Max will be a single streaming platform that will not only include all of HBO's own original content - from shows like Game of Thrones and Westworld to a range of movies - but also new original material and content from owner WarnerMedia's other services.

What shows and films will be on HBO Max?

We already know that Friends will be leaving US Netflix to move over the HBO Max, and that other '90s favourite The Fresh Prince of Bel Air will also be on the platform. HBO has also commissioned six new movies already, with plans for more films and TV shows, and it's using HBO Max as an excuse to ramp up its original content ambitions, with TV shows on the way including Dune: The Sisterhood, a Gremlins animated series, and a rom-com anthology series from Anna Kendrick called Love Life.

At San Diego Comic-Con it was also announced that the DC Universe show Doom Patrol would become an HBO Max co-production, with season two airing simultaneously on both streaming services, and the first season arriving in its entirety when HBO Max launches. It seems a safe bet that this could be the first of several such deals, especially with other DC Universe shows.

HBO has also signed a deal with the BBC to get exclusive US streaming rights to a whole range of British shows, including modern Doctor Who (from 2005 onwards), the Office (UK version), Luther, Top Gear, and more. The deal even includes new episodes of Doctor Who going forwards - though they'll still be broadcast on BBC America first.

There'll be kids TV too, anchored by iconic brand Sesame Street. This started airing on HBO back in 2015, but from 2020 onwards (well, for five years at least) a new deal will see new Sesame Street episodes air exclusively on HBO Max, along with four new Sesame Street shows including an Elmo-led late night talk show parody. Plus, all 50 seasons of Sesame Street's back catalogue will be available to watch, including some that have never been available on-demand before.

When is HBO Max launching?

HBO hasn't announced a specific release date yet, but has said that the service will launch in 2020, so there's still a little while to wait before it's available. In the meantime, HBO Go and HBO Now are both around already - and we'll go into more on how the services differ below.

How much will it cost?

Again, there's no pricing yet. However, HBO Now costs $14.99 per month, and HBO Max is set to include all that content and more, so it's a very safe bet that it'll be even pricier. We'd expect $19.99 per month, but we'll find out for sure closer to the launch.

Is HBO Max coming to the UK?

HBO hasn't announced any release beyond North America, but in all honesty we'd be very surprised if HBO Max came to the UK. Neither of the companies other streaming services are available in the UK, and instead it has lucrative deals with Sky to make HBO content available on Sky Atlantic and Now TV - those deals mean that it's very unlikely we'll see HBO Max here.

There are already various ways to watch HBO from the UK though, and most of those will still apply when HBO Max launches, so there will almost certainly be some way or other to watch any HBO Max exclusives wherever you are.

HBO Max vs HBO Now vs HBO Go

There's one final potential confusion worth clearing up: the difference between HBO Now, HBO Go, and HBO Max.

For reasons best known to itself, HBO currently operates two separate streaming services which offer almost identical features and interfaces, with HBO Max now on the way. The main difference right now is how you pay for them: HBO Now is a standalone service that anyone can sign up to for $15 a month, while HBO Go is provided to existing HBO cable subscribers free of charge.

If you're not in the US you're almost certainly not paying for HBO on cable, so you won't be able to sign up for HBO Go anyway. However, if you are a US cable subscriber who's staying or living abroad, you should be able to access HBO Go through a VPN just as you can with HBO Now.

HBO Max will be closest to HBO Now, as it will be a standalone service, not limited to existing cable customers. However, as already mentioned it will also include additional content that isn't originally from HBO, along with all of the new exclusive shows and films.