They are new, the first two have aired in other countries before (the ones aired day 17), but from now on they are never before seen, as far as I know.
Interesting that we have some upcoming episodes that will first air in the UK. Not in any other parts of the world. The episodes that first aired in the UK are Dog's Best Friend, the two parts of The Nose Job, My Fair Dolly, and Flea-Mageddon.