PHILADELPHIA (CBS) - If you’re watching the major league Phillies on TV, don’t be surprised to see commercials promoting the Phils’ minor league clubs.

With unsold tickets at Citizens Bank Park about as rare as a Roy Halladay wild pitch, the Phillies are ramping-up promoting their minor league teams in Allentown, Reading and Lakewood.

Phils marketing director Michael Harris says there’s an in-game TV ad this season pitching the minor league experience.

“It’s just the reality of our situation,” he said. “With so many sellouts at Citizens Bank Park and our fans wanting to be involved within the Phillies in any way, shape or form, the minor leagues are certainly another opportunity to do that.”

Harris says the Phils minor league teams are at or near the top of the attendance charts in their leagues. And he says the extra promotion is a way to extend the Phillies brand when big-league attendance is nearly maxed-out.

Reported by Mike DeNardo, KYW Newsradio