I am not familiar with Mitchell and Webb, but a brief Bing search reveals that they are British comedians known for starring in several popular comedy sketches and sitcoms. In one of their shows, The Mitchell and Webb Look, they satirize homeopathy and its impotence in treating serious diseases.

“A&E” stands for “Accident & Emergency” and is more commonly used in the Commonwealth countries. It is analogous to the “ED” (Emergency Department) or “ER” (Emergency Room) acronym used in the United States.

Scientific research has so far not found any superiority in homeopathy above placebo, but it is a brand of therapy more readily accepted in some countries. Several European health services will reimburse the use of certain homeopathic remedies. In India, homeopathy is an officially recognized form of medicine.

One could argue that if homeopathy were not doing any harm, why bother? There can nevertheless be great potential for harm when homeopaths counsel against the use of conventional treatments (see article in Telegraph with follow-up in BBC). Having obtained degrees in biochemistry, molecular biology, and medicine, I know I’m biased, but that is why we have double-blinded randomized control trials.