Jonathan Creek, Series 1

Jonathan:
People beg me to explain something; it's the last thing they want to hear, 'cause you're disproving a miracle. Houdini walked through a wall two bricklayers had built onstage: People swore he had the power to dematerialise. You find out he he used a trapdoor under a carpet, it's too mundane: you feel cheated. That's all magic is, an illusion.