Ellie, a 9-year-old, having her first experience of a home TV room loop:
Evelyn explains her hearing loop "Aha! moment" here.
And Chris (Green Bay) explains her hearing loop "Aha! moment" here.
New York City subway booth video/sound demonstration: here (9 MB)
Grand Rapids, MI, Airport:
Note: If you are a normal hearing person you (in this demo and in real life) will be less challenged by a distant loudspeaker and by distracting noise than is a person with hearing loss. For a more dramatic hearing loop effect, consider the difference in a larger room--such as in the church below.