Mike Tomlin officially has his first broadcasting gig set up after it was announced that the first Sunday Night Football matchup of the season will be a showdown between the Giants and the Cowboys on Sunday, Sept. 13. Tomlin is joining NBC’s Football Night in America broadcasting crew for the 2026 season. After the coach’s 19 legendary seasons with the Steelers , NFL fans wondered if the first SNF game of the season would showcase Pittsburgh for Tomlin to feel comfortable early on. We still don’t know when Tomlin will cover his first Steelers game as the full 2026 schedule will be released Thursday, May 14 at 8 p.m. ET. Instead, Tomlin will cover his longtime rival John Harbaugh’s debut in New York for his first broadcasting assignment. Harbaugh parted ways with the Ravens following 18 seasons in Baltimore back in January and then landed in New York for a new gig.…