I’d rather forget about that travesty.
Somehow I don’t remember an American version of Upstairs Downstairs.
The stupid American US/DS took place in Boston and was crap. IIRC, it was on CBS. You’re better off having NEVER seen it!
"Smash hit" it wasn't. I don't know if it was that much worse than the British version, but definitely it wasn't going to be a success on US commercial networks.