New to Apple TV+

Recently subscribed to AppleOne and am now trying to stream Apple TV+ on my tv (through Xfinity). It was difficult finding a show but I finished watching the first episode. At the end it wasn't easy to figure out how to get to the second episode. I had to fastforward through to the end of the credits then had to hit back several times before I could begin to find where the second episode was. I tried the up and down arrows, side to side, but nothing worked. Is there an FAQ describing how to get the most out of Apple TV and with tips on how to navigate effectively? Thanks!