open-line

American  

[oh-puhn-lahyn] / ˈoʊ pənˌlaɪn /

adjective

1. (of a radio or TV show) maintaining open telephone lines to permit listeners or viewers to phone a program with comments, questions, requests, etc.; call-in.

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open-line British  

noun

1. Also called (in Britain and certain other countries): phone-in.  a radio or television programme in which listeners' or viewers' questions, comments, etc, are telephoned to the studio and broadcast live.

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Etymology

Origin of open-line

First recorded in 1965–70

Example Sentences

Every Thursday, the actor, comedian and producer Tim Heidecker hosts open-line “office hours.”

From Washington Post • Dec. 23, 2016

Two days later he apologized on an open-line radio program.

From Time Magazine Archive