Samuel's coach, Orin Bailey, informed Scout of the decision to pick the Horned Frogs over the likes of Houston, Texas A&M, USC, Arkansas and Tulane.
"I think he liked their staff, the opportunity to come in and make a difference in the program right away," Bailey said. "I think they are trending up."
A 2017 prospect, Samuel moved to Houston, Tex., last spring from the Caribbean. He played his junior season at Houston (Tex.) St. Thomas Episcopal.
Samuel emerged last summer in Las Vegas playing with Bailey's Dreamteam AAU program. Then the 6-foot-10, 220-pound big man had a strong showing at the Pangos All-American Camp in June and began to draw more interest.
"They just have a very knowledgable staff," Bailey said about TCU. "They coached high-level players. They have a great resume of getting guys to the next level. I think he just thought they meshed and it was good fit."
Samuel is currently regarded as the No. 72 overall prospect and the No. 16 center in the 2017 recruiting class.