Houston Astros, Seattle Mariners
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The Mariners will debut their first “over-the-air” telecasts on Friday when they open a four-game series against the Houston Astros at T-Mobile Park.
The Mariners rolled out more details for their plans for TV broadcasts for the 2026 season on Thursday, and while there are some slight changes, all games will be accessible and catered to fans through multiple viewing options -- all without local blackouts.