Televangelism (tele- "distance" and "evangelism," meaning "ministry," sometimes called teleministry) is the use of media, specifically radio and television, to communicate Christianity. Televangelists are ministers, whether official or self-proclaimed, who devote a large portion of their ministry to television broadcasting. Some televangelists are also regular pastors or ministers in their own places of worship (often a megachurch), but the majority of their followers come from TV and radio audiences. Others do not have a conventional congregation, and work primarily through television. The term is also used derisively by critics as an insinuation of aggrandizement by such ministers.