change the channel
1. Literally, to switch from one television station (or "channel") to another. Never change the channel during the game! We might miss something! I'm not really paying attention to that show, so feel free to change the channel. Quick, change the channel—Ella just texted that she's gonna be on the 5 o'clock news!
2. slang To introduce a different topic of discussion, usually intentionally. I changed the channel after that last remark made Jeff and Bill visibly tense. Don't try to change the channel on me—I know one of you kids dented my car! OK, I think it's best we change the channel now. Politics shouldn't be discussed at a diner party.
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