Novak tweeted Saget on Thursday, the day before appearing live on ABC News' "Good Morning America."
"I will be on @GMA tomorrow morning talking about @thefounderfilm but only because @bobsaget wouldn't book me on Wake Up San Francisco," he joked.
"B.J., I feel really bad," Saget said today during a Skype on "GMA." "I would've made the Danny Tanner move to the producers of 'Wake Up San Francisco,' to promote 'The Founder' and you. You know I love you, but it's now on the new 'Fuller House,' it's called Wake Up USA. I got promoted. I'm going to get you the gig. You're going to come on to promote your movie because you're great and you know I love you like a small child that became a man."
Saget and Novak worked on a skit together while Novak was a 23-year-old student at Harvard.
In the movie, Novak plays Harry J. Sonneborn, the first president of the McDonald's corporation.
"[Y]ou see in the movie that it was really like a mom and pop burger stand of just exceptional, perfectionist quality at this one location and Michael Keaton's character had the vision for it and saw where it could go -- to every corner in America," Novak said today on "GMA."
"But the battle, it's sort of like he's a race car driver who's being a backseat driver. He knows how to take it there, but they don't necessarily want it to go there. So, it's a real great push and pull of American business."
"The Founder" opens in theaters nationwide Jan. 20.