is it true that can you download shows on hulu?

One thing that catches people: downloads stop playing if the app hasn't been online for a while, it needs to check in every so often to confirm your subscription. There's also a cap on how many downloads you can hold at once and on how many devices. So open the app on wifi before you leave, don't just trust what's sitting in your downloads tab from last month.

yes, but only in the phone/tablet app and not on every plan. the no-ads plan definitely has it. look for the download arrow on the episode page, if there isn't one either your plan doesn't include downloads or that show isn't licensed for it (some aren't). they also expire, so download the night before a flight, not a week before. doesn't work at all in a web browser or on a laptop.