A call in show is a popular format for radio and television programs where viewers or listeners can phone in and express their views, opinions, or questions about a particular topic being discussed on air. There are various synonyms for this type of show, depending on the format and content of the program. Some common alternatives may include call-in talk show, phone-in radio show, interactive forum, public opinion forum, audience feedback session, listener comment line, and dial-in discussion group. Whatever the name, call-in shows can be entertaining, informative, and engaging, giving viewers and listeners a chance to participate and be heard on important issues.