Anyway, this is probably one of my favourite shorts. Like zartok said, Julie Kavner's line delivery is just great here. And I love the simplicity of the whole thing, yet it still has a substantial amount of humour. Yes, Lisa is not like her character in the full-length series, but the original intention of her was to be a female Bart, and I think the dynamic of two siblings having a burping contest worked really well. Also, love Maggie's burp near the end.