A:AnswerShae, yes the Express will work with any TV. Since you have a 4K TV I would suggest going with the Roku Premiere to watch 4K content on your TV. Fandango is a popular channel that offers new movies https://channelstore.roku.com/details/144475/fandangonow Roku also works with Netflix and other subsciption services.
A:AnswerPaw, at this time HBOMax isn't available through the Roku Channel Store. Unfortunately it is up to HBO to make their content available. Currently there are 3 HBO Channels available https://channelstore.roku.com/search/hbo
A:AnswerThe current version of the Express uses an HDMI connection.
There was a previous version of the Express that uses RCA Cable (red, white and yellow) available on the Roku webstie. https://www.roku.com/products/roku-express-plus-2018
A:AnswerOn roku.com, you can buy the 2018 version of the Express+, which has HDMI and RCA connections. That will be your only option, as the 2018 Express+ is a Roku.com exclusive
A:AnswerI don't think you will need one. I have 3 Roku, I wish I had gotten them all the same. The one for my office I believe was labeled good for secondary TV, so I need the TV remote just to turn the TV on/off and volume.
The other Roku remotes I simply use that remote. I subscribed to YouTube TV, it is $5 more than Hulu plus, but you get more bang for your buck. Could not be happier with it.
A:AnswerWhen you setup your Roku it asks for a credit card number so you have a way to bill programming if needed. They say you will always be prompted to approve any charges before they are applied to your bill. A lot of stuff is free, but some "channels" require a monthly payment. Or if you want to stream a movie, you may have to pay for it.
A:AnswerOnly if you have a roku tv. The roku remote for this one does not control volume. But it's the best thing I've ever bought and it's saving me so much over direct tv