Tout
In British English, a tout is any person who solicits business or employment in an importunate manner . According to the American Bar Association, touting occurs when a person advertises, promotes, or otherwise describes a security for sale without disclosing that the person is being paid to do so. Wikipedia*
On the C-SPAN Networks:
Tout has hosted 3 events in the C-SPAN Video Library; the first program was a 2012 Internet Video.