Lucas Till, who plays MacGyver, was born in Fort Hood, Texas. Fort Hood is located just outside of Killeen, Texas. Jackie Robinson served there in WWII and Elvis Presley did basic training and AIT there.
MacGyver says Dalton is always talking about Texas. George Eads was born in Fort Worth, TX, graduated high school in Belton, TX, graduated college from Texas Tech University. In the MacGyver (1985), Bruce McGill, who played Jack Dalton, was born in and graduated high school in San Antonio, TX and graduated college from the University Of Texas.
The phone number Mac writes down on the back of the childhood picture of Mac and Bozer is, 323 555 0146.