I don't know of a TU. Texas State University use to be called Southwest Texas State University and before that it had a name that I do not recall, but Lyndon B. Johnson graduated from there.
Actually, TU is a derogative term that the Aggies try to use or may be you mean Tennessee University?
Where's TU? He's going to San Marcos, all the kids who can't get into UT go there now :) there was a good article about Texas State in the Texas Monthly last year. I'm happy he's in college actually, he would rather deliver chinese food and live off Mom and Dad I think ;)