Here's how to watch the 2023 REBROADCAST: ATC Grand Nationals broadcast on Varsity TV. The 2023 REBROADCAST: ATC Grand Nationals broadcast starts on Jan 28, 2023 and runs until Jan 30, 2023. Stream or cast from your desktop, mobile or TV. Now available on Roku, Fire TV, Chromecast and Apple TV. Don’t forget to download the FloSports app on iOS or Android! If you can’t watch live, catch up with the replays! Video footage from the event will be archived and stored in a video library for Varsity TV subscribers to watch for the duration of their subscription.