This was a spectacular Simpsons episode. It ticked all the boxes for a good comedy: Jokes, sarcasm, slapstick humour, allusions, good guest stars, etc. There were so many funny parts of this episode. I especially loved Sideshow Bob, he is what made this episode extra special.
Bob:'No, that's German for 'The Bart, The'.'
Bart: 'I couldn't help noticing you have a lovely voice'
Bob: 'Guilty as charged'
This was also one of those iconic episodes, the ones that, even if you haven't seen them, you know what happens in them because they are talked about so much. Extremely funny, cleverly written and pure gold.