I don't see any reason why you can't adapt to digital, Robert. There's not a lot of difference in how you change a bulb, which would be the bulk of your maintenance responsibility, if even that. Ingesting content and setting up a playlist is rediculously easy. Once you do that, you're finished until the next change of content. Just learn how things flow, and what buttons are available for you to manually do what the automation might have somehow missed.
Beyond that, the theatre's going to be pretty much the same downstairs as it always was... maybe some new digital stuff, like menu boards and poster screens, but the popcorn machine will still be familiar!