Tune in Definition 1 of 2Pro Tip 1/3Technology Usage Used commonly when referring to selecting channels on media devices or platforms. Let's tune in to the weather channel for updates. Pro Tip 2/3Scheduled Events Often used to remind or invite someone to listen or watch a specific scheduled program. Don't forget to tune in at 8 p.m. for the season finale. Pro Tip 3/3Radio Context Originally from radio lingo but now applies to various digital streaming services. Tune in to our podcast every Thursday.