The 30 minute show describes Infomercial.
Explanation:
An infomercial is a kind of a commercial television that usually contains a toll-free telecommunications or website.
While advertisement was made popular in the earliest 1980's, a Vita-mix blender was considered to be the first ever long-standing advertising. The model was nevertheless taken off in the 1970's, particularly in San Diego, when a one-hour Television show revealed local houses every Sunday.
Infomercials are popular for televising at peak hours, normally late in the evening or early in the morning. Those hours ' advertisement rates are lower than most others, encouraging companies that sell their goods to buy some time than they could, if exposure was on a popular TV show.