Place pork tenderloin in slow cooker. Whisk together balsamic vinegar, broth, honey, soy sauce, Worcestershire sauce, garlic. Pour over pork. Cook pork about 4 hours on low or until pork has internal temp of 145 degrees. Then, remove pork and allow it a 3-minute rest time. After the rest time, use two forks break apart and then add back to the slow cooker until you are ready to enjoy.