The 6'5 wingman became head coach Trent Johnson's first commitment in the 2013 class.
Parrish said that his official visit to TCU answered a lot of questions about the program.
"I really felt like Coach Johnson, Coach Pooh, Coach Scott, and Coach G were all really welcoming to me and really enjoyed having me, and I really enjoyed them," Parrish said. "I really like that TCU gives me opportunities, going into big time level of [competition]. It's a great school, going into the Big 12, and it's right around the corner, so you really can't beat that."
Parrish said overall he would give his official visit to TCU an A which ultimately made the decision much easier.
"I really liked the campus. It's a great place to be, and I really just loved the whole environment," Parrish continued.
Parrish said that TCU head coach Trent Johnson compared Parrish's game to some other great players he has coached.
"Coach Johnson said I remind him of some other players he had like [Sacramento King's guard] Marcus Thornton, and [New York Knicks guard] Landry Fields, and he said I could even be better than them. I've seen how [Coach Johnson] helped them showcase their talent," Parrish said.
"And Coach Pooh, he has been recruiting me for a long time. When he was at SMU, he recruited me a little bit, and when he came to TCU, he kept recruiting me. He was a good point guard when he was in college, and I know that he will be able to help me develop my ball handling and game."
TCU picked up their recruitment of Parrish in the spring and summer when Parrish impressed on the AAU circuit.
Parrish said, "I think I bring the ability to score, and my size will be really helpful to the team."
Known for the elite range on his jumpshot, Parrish said he has been working on scoring off the dribble more as well.
Parrish also explained how the Big 12 is opening a lot of people's eyes to TCU. "The Big 12 and Mountain West is like night and day...Everybody wants to play the best."
Parrish is ranked as a three star by FoxSportsNext.com. With recruiting behind him Parrish can now "go win that state championship."