I’m signing up for Directv stream soon and am going to order the box to have more of a cable like experience. I was wondering - are there different models? I want to make sure to get the latest one to have a good responsive experience with the UI. I was thinking about going to a store close by so I could bring it home with me but didn’t know if that would be best or if it would be better to order online to make sure to get the latest device. Thanks!