A telethon is a televised fundraising event that typically lasts several hours or even days. It features various entertainment segments, including music performances, celebrity appearances, and live appeals for donations. The primary goal is to raise money for a specific cause, often related to charities, medical research, or disaster relief. During a telethon, viewers are encouraged to call in or donate online, with the total amount raised often displayed on-screen. Organizations like the United Way and St. Jude Children's Research Hospital have successfully used telethons to generate significant funds and raise awareness for their missions.