I thought the American version of coupling had already been binned? It needs to be if it hasn't.
There is no way there could be a US version of The Royle Family..the whole comedy is the "scouse/manc" sense of humour, how would it be funny to hear a doodle say, "put kettol on ant'nie" or "e's a rart knobead he is" or "rart, tarm ferra tom tit"...they could probably try to do an American one based on the Royle Family, but I'd say it's already been done....The Honeymooners!
As for the other two shows mentioned...never heard of them.