Just checked my TripIt to refresh my memory. I made the specialty dining reservations ahead of time online. The headliner show reservations were also online. What I was remembering about show reservations on the touch screen was for the comedy show. If you look at your cruise reservation online, under Entertainment, if you see "too early too book", those are the ones you'll be able to book online. Checked my old e-mails and I made the show reservations 4 months ahead.
We tend to eat early, I think most of the time we went around 6 to the main dining rooms. Never really had to wait. Just checked in first (they scan your cruise card) and was seated.
How many nights would you eat on Bermuda? A 7 night cruise comes with 3 nights specialty dining. We paid $13.80 gratuities/person. I wasn't impressed with the main dining room food, so less than $5 each for specialty dining was totally worth it for me. We did teppanyaki (yummy and fun), Le Bistro (my favorite), and the steakhouse. The steakhouse is really popular, but it was just okay for me (maybe an off night). I would have picked Ocean Blue, but there was an upcharge when using the package that made it seem not so worth it. I think they might have gotten rid of that though.
We loved this too on Carnival. And it's great that they show fairly new movies. On NCL last year, we watched Hotel Transylvania 2 one afternoon in the theater. It's from 2015.

Free popcorn though.
DCL may be the only line that charges for popcorn, lol.