At the moment E4's Sunday-night Simpsons block, rather than running episodes in order like they do the other six nights of the week, is a theme night, with five episodes connected by something. Thus far they've had a Treehouse of Horror night, a night of Homer episodes for Father's Day, a Lisa Night, next Sunday is based around musical guest stars... it's a cute little touch, especially since each night has a name given to it which shows up in the EPG.