Related:

• Troy: I'm here to tell you about `Spiffy!', the twenty-first-century stain remover.
  Let's meet the inventor, Dr. Nick Riviera. Nick: Thank you, Troy!...
• Oh, no, someone taped over the end of this! -- Dr.
  Nick Riviera's poignant observation, "Homer's Triple Bypa...
• Nick: Hi, everybody! Crowd: Hi, Dr. Nick! Nick: If something should go wrong, let's not get the law involved!
  One hand washes the other. Oh, that reminds me!...
• Dr. Nick: Hi everybody! Homer+Bart: Hi Doctor Nick!
  Nick: Now there are many options available for dangerously underweighted individuals like yourself....
• Troy: Hello, I'm Troy McClure. You may remember me from such movies as `Cry, Yuma' and `Here Comes the Coast Guard'!
  But today I'd like to tell you about a pleasant-tasting candy that actually cleans and straightens your teeth!...
• Don't worry. You won't feel a thing. [exhibiting a swirling mechanical device] Till I jam this down your throat!
  -- Nick Riviera, "The Springfield File...
• Riviera: Hi, everybody! Board: [unenthused] Hi, Dr.
  Nick. -- At a malpractice board hearing, "Twenty-Two Short Films About Springfield...
• Nick: I know I'm supposed to cut something, but what?
  [removes surgical mask] And where? Lisa: [from the amphitheatre] Hey!...
• Nick: Calm down, Nick. Just think back to medical school.
  [a college dorm filled with hippies and junkies] Nick...