Tim Tebow's already so convinced that Tom Brady will be great in the broadcast booth ... he tells TMZ Sports he's hoping the G.O.A.T. will give him TV advice -- not the other way around!!
We got the former Heisman Trophy winner -- who's been analyzing football games for ESPN for nearly a decade -- out at LAX ... and he's guaranteeing TB12 will thrive in a post-football role as a color commentator.
"He'll be amazing," the 34-year-old said. "He'll be so good at it.