The University of Tennessee is making a big promise: Starting in 2020, the system will offer free tuition to qualifying low-income students enrolling at its Knoxville, Chattanooga and Martin campuses. The program, called UT Promise , is the first of its kind among public universities in the South. UT Interim President Randy Boyd , a first-generation college graduate himself, is the architect of the program. Boyd joined On Second Thought from WUOT in Knoxville to explain why Tennessee is making