I do not know anything about these. I would like to buy either a Amazon Fire, Apple TV,or Roku (Which ever has HBO Max and Youtube TV) What do you recommend for someone with AT&T service? I would like to pick this up at the Pleasant Hill store.

Roku has HBO Max and YouTube TV and If you'd like to access HBO Max as part of YouTube TV, then you'll need to buy Entertainment Plus, or buy the individual HBO Max add-on in the YouTube TV app. After that, you'll be able to login to the HBO Max app using your YouTube TV account credentials. apparently all these issues are being worked out so you can use your Roku credentials to access both channels without having to use one to access the other. I personally don't have either and this may have been fixed to my knowledge. I can't validate the accuracy of this information so you will have to do a little research or trial and error to confirm. hope this helps somewhat.

HBO Max is an app you can download to any of those devices. You must pay a subscription fee for each prime app you subscribe to. Some are no cost and have limited programming to watch.