I can't believe you guys don't have carveries! They're common as anything over here. Although, come to think of it, how common are roast dinners in the US? This is a genuine question - I don't think I ever really see them on TV shows. The full shebang with chicken, roast potatoes, peas, carrots, yorkshire puddings, gravy, sage and onion stuffing, broccoli, brussel sprouts etc. ?
Same with Chippies in regards to how common they are. I can think of at least 7 in my town alone, and it's not a huge town.
I guess the chips are a bit different because they're a lot chunkier than fries. They tend to be a lot softer because they have more potato and less of a coating.
As for brown sauce, that stuff is the shiznit! I have it with most meals. I heard once that it's called steak sauce in America? It's a vegetable mix that's mildly spicy and has a somewhat pickled/fermented flavour.