I get all the sermons / church stuff / presentations emailed to me the night before on my iPad so I can take it with me and follow what's happening as it's easier than me trying to get everything they do in large print.
When they have a presentation they email the powerpoint they put up on their big screen for me
edit - then of course there's the problem that thus far android just don't do a decent screen reader / zoom software. They are of course getting there but it's no good to me yet