Vegas Vacation (S02E23)

Greg takes his henpecked dad (Tim Conway) on a weekend getaway to Las Vegas so the man can relax and get away from Greg's mom (Vicki Lawrence). But Dad's not exactly a live wire. He's also prone to getting lost and stumbling into trouble, such as getting locked in a monkey house. To boot, Greg finds himself becoming a male version of his mother just to cope with his dim-witted dad. (CBS TV Network)