Head to NBC and Peacock for a thrilling day of MLB action. It all starts at 12:00 PM ET, when the Baltimore Orioles face the Tampa Bay Rays in the MLB Sunday Leadoff game. Then, at 7:00 PM ET, it's the Seattle Mariners vs Houston Astros on Sunday Night Baseball. See below for additional information on how to watch both games.Jason Benetti will call Sunday's Mariners vs Astros game alongside 2005 World Series champion Geoff Blum and former Seattle pitcher Ryan Rowland-Smith.Ahmed Fareedwill host the pregame show alongsideAnthony Rizzo, who will also provide Inside the Pitch commentary from the batters perspective during the game.Click here to sign up for Peacock!How to watch the Seattle Mariners vs Houston Astros:Where:Daikin Park, Houston TexasWhen:Sunday, August 16Time:7:00 PM ETTV Channel:NBCLive Stream:PeacockWhat other MLB games are on Peacock this Sunday?Baltimore Orioles vs Tampa Bay Rays - 12:00 PM ET on NBCSN and PeacockHow to watch MLB on NBC and Peacock:MLB Sunday Leadoff is a weekly Major League Baseball showcase featuring live Sunday daytime games. It highlights marquee matchups throughout the regular season and streams primarily on Peacock, with some games also airing across NBC Sports and NBC.MLB Sunday Night Baseball is a weekly primetime Major League Baseball showcase, featuring marquee matchups each Sunday night during the regular season. The games air on NBC and Peacock and anchor NBC Sports Sunday night programming lineup.NBC Sports will also stream one out-of-market game each day of the 2026 MLB season nationally on Peacock. Telemundo Deportes will present all NBCUniversal-produced MLB games in Spanish, with Universo televising all games broadcast on NBC.How to sign up for Peacock:Sign up here to watch all of our LIVE sports, sports shows, documentaries, classic matches, and more. Youll also get tons of hit movies and TV shows, Originals, news, 24/7 channels, and current NBC and Bravo hits for whatever suits your mood.MLB on NBC 2026 schedule:Click here to see the full list of MLB games that will air on NBC and Peacockthis season.Why are some MLB games unavailable to stream on Peacock?Due to territorial blackout restrictions, select regular season, special event, and Postseason games may be unavailable on Peacock. Television territory blackout restrictions apply regardless of whether a Club is home or away and regardless of whether a game is televised in that Club's home television territory. For more information, visitPeacocks Help Center.What devices does Peacock support?You can enjoy Peacock on a variety of devices. View the full list of supported devices here.MLB Lineup Report: Abimelec Ortiz announces his arrival, tracking 2027 eligibilitiesA weekly look at lineup trends around MLB and the impact on fantasy baseball rosters. Brendan Tuma,Check out the latest MLB player news here!