Spray the crockpot well with cooking spray or use a slow cooker liner
Add BBQ sauce, Worcestershire sauce, and brown sugar to the crockpot and stir well
Add chicken and toss to coat.
Cover and cook on high 3-4 hours or low for 6-7 hours.
Remove chicken to a cutting board and shred the chicken. (I normally shred it while it's still in the crockpot so I don't dirty more dishes)
Place the shredded chicken back in the crockpot and stir well.
Scoop chicken with sauce on top of a cooked baked potato (We use the wrapped baked potatoes that you put into the microwave for 5 minutes.)