Another tie in to Det Munch that I don't think has been mentioned (If I missed it, sorry for the repeat): In the BBC series "Luther", the title character had a fellow DI contact "Det Munch at SVU in New York" in regard to a crime with American connection. No actual appearance occured; not even a voiceover. Just the mention connecting Munch (and all of his many other connections) to the "Luther"-verse.