We watched Season 4 Episode 11: Homer's Triple Bypass! Homer has a heart attack, we meet Dr Nick Riviera for the first time. This was an excellent example of joke writing vs serious subject matter, Claire found this episode very stressful, Bok experiences technical difficulties right when making a poignant moment, both talk extensively about dentists (For real, trigger warning for mouth gore for the first 20 minutes. Oh yes, 20 big ones of deep dentist chat)