From BYU's website:

"Welcome to the Cougar Club

The Cougar Club is the official booster organization for BYU Athletics. Although BYU is sponsored by The Church of Jesus Christ of Latter-day Saints, the Athletic Department receives no funding from the church. No tithing or tax dollars are used for BYU Athletics. The Athletic Department is responsible for raising all necessary funds to run the department, including, but not limited to: student-athlete scholarships, coaching salaries, as well as facility and program costs for each of BYU's 21 team sports."

Then remind him that it is illegal to raise money based on a lie and people would go to jail for deceptive solicitation of charitable donations if the above weren't true. If I knew the church was giving money to BYU athletics I wouldn't give (why give my pennies if the Church is willing to give millions, I'd save my pennies for a different cause). The reason they post this language on the website is to encourage people to donate more, because the Church isn't helping out. Does your comp really think TH would risk jail time to raise money for BYU?