Debbie Sue and Mark Przybysz’s home, a 100-year-old craftsman bungalow in Chattanooga, Tenn., that they bought for $65,000, came with original wood floors, a charming stone porch and a gaping ...

Raised in Maplewood, New Jersey, O’Connor grew up watching “This Old House” with his father, a civil engineer. The popular home improvement show launched in 1979, meaning it’s now ...