In large mixing bowl or slow-cooking pot, mix together pretzels, cereals, and peanuts. Sprinkle with garlic salt, celery salt, seasoned salt, and cheese. Pour melted butter over all; toss until well mixed. Cover and cook in slow-cooking pot on low 3 to 4 hours. Uncover the last 30 to 40 minutes. Serve as appetizer or snack.