In large microwavable bowl, mix cereals and crackers; set aside. In small microwavable bowl, microwave butter uncovered on High about 45 seconds or until melted. Stir in Worcestershire sauce, seasoned salt, garlic powder and onion powder. Pour over cereal mixture; stir until evenly coated.
Microwave uncovered on High 5 to 6 minutes, thoroughly stirring every 2 minutes. Spread on paper towels to cool, about 15 minutes. In large bowl or resealable food-storage plastic bag, gently toss together cereal mixture and potato chips. Store in airtight container.