The train on which Victoria Winters is traveling during the opening narrative is not the one upon which she arrives in Collinsport. The first train shows multiple deck commuter cars whereas the second has only single deck passenger cars.
The "Old House", supposedly vacant for a century or two, has a modern electrical circuit breaker box in the basement. It is visible as the camera pans to show Barnabas' coffin after David is caught sneaking into the cellar.