In 3 1/2- to 4-quart slow cooker, place potatoes. In small bowl, mix fennel seed, oregano, paprika, garlic powder, salt and pepper. Rub into pork roast. Place pork on potatoes. Pour broth over pork and potatoes.
Cover; cook on Low heat setting 8 to 10 hours.
Remove pork and cut pork into slices. Serve with potatoes.