The ITV Hub is now updating properly again. If you still need to watch Tuesday's Emmerdale you'll need to start playing the current episode (Wednesday's), wait until the ads end and the programme starts then press pause on the remote and select view all episodes to get to Tuesday.
@Anonymous User @Anonymous User ITV Hub updated the app yesterday so now clicking a show will automatically bring up a list of all available episodes to choose from, instead of messing around playing the latest episode each time. They've also redesigned the homescreen a bit. Every little helps!