Before playing Martin Crane on Frasier you might've spotted actor John Mahoney in commercials for Miracle Ear in the 80's. I don't know how on earth John Mahoney got to promote Miracle Ear in the 80's but he sure made Miracle Ear sell tons of hearing aids. But John was the spokesman for Miracle Ear from 1986 to 1989 and I am not sure if John Mahoney did other commercials after these aired