[8] Hill was highly recruited out of high school; in addition to Texas A&M, he received offers from Baylor, Houston, Kansas State, Missouri, North Carolina, Ole Miss, Southern Miss, TCU, Texas Tech, and Utah.

On September 6, 2014, in his second game as a starter, Hill had another stellar performance against the FCS school, Lamar University, completing 17 of 26 passes for 283 yards and four touchdowns in a blowout 73–3 win.

[13] However, when the Aggies reached mid-season and began playing tougher opponents, Hill's performance dropped notably.

[14] Due to these struggles on the field, notably against better competition where the Aggies lost three straight games, Hill was replaced mid-season by true freshman Kyle Allen.

[17] On May 22, 2015, Hill announced that he was transferring to Texas Christian University and planned to play for the TCU Horned Frogs football team.

[19] Hill and the Horned Frogs finished the 2017 season 11–3 and ranked 9th in both the final AP and Coaches poll.

He ended the season and his college career having beat the then 15th ranked Stanford Cardinal football team, 39–37, in the 2017 Valero Alamo Bowl.

Hill eventually regained the favor of his team and head coach Kevin Sumlin and was named the starting quarterback for the 2014 season.