Combine the chicken broth, teriyaki sauce, brown sugar, and minced garlic in a large bowl.
Add the diced chicken to the sauce and toss everything well to coat the chicken.
Pour the chicken mixture into your Crock-Pot.
Cook on low for 4-6 hours, or until the chicken is fully cooked and tender.
Serve the chicken over hot cooked rice and spoon extra sauce if desired.