The Seattle Mariners vs Houston Astros game on September 20, 2025, at 7:10 p.m. ET can be watched on TV via SCHN and ROOT Sports NW. For live streaming, the game is available on Fubo, but there may be regional restrictions. ROOT Sports NW is the regional sports network covering the Mariners, and SCHN is also broadcasting the game. If you are a Mariners fan in the Pacific Northwest, ROOT Sports NW is the usual TV home, and they also offer a streaming app called ROOT SPORTS Stream for in-market fans. Additionally, for fans outside the local regions, MLB.TV offers out-of-market game streaming with blackout restrictions. Radio fans can listen to the Mariners games on Seattle Sports 710 AM and its affiliates. Summary:
- TV: SCHN, ROOT Sports NW
- Live stream: Fubo (may have regional restrictions), ROOT SPORTS Stream (in-market Mariners fans)
- Out-of-market streaming: MLB.TV (with blackout restrictions)
- Radio: Seattle Sports 710 AM
This information covers where to watch the Mariners vs Astros game both on TV and online as of September 20, 2025.