I would love it if that happens... But see the thing is 4Lions is one of the most poorest production house... If you were aware of their previous shows, the actors had to do their own styling and they looked unkempt for many episodes... 4lions couldn't even afford proper clothes for the leads... Seriously, I don't think they are wealthy enough to shoot in New York... Zeetv on the other hand is not as rich as Star Plus or Colors so they can't. Do anything either... As far as Rab Se Sona Ishq, well the production house and producers are wealthy . Bade Acche Lagte Hain is an Ekta Kapoor show and her shows are always lavish Balaji Productions is a rich production house... Diya Aur Baati Hum and Saathiya both have a killer combination of both rich production houses as well as being on a rich channel which is Star Plus... Star Plus is the richest television channel in India for which they r able to afford a grand and lavish show like SaraswatiChandra which is like 3lakhs per episode... They can invest crores in their shows... As far as Zeetv and 4lions, well that is a poor combination in terms of wealth and production... But yes, the production house can recreate a set that maybe looks similar to something in NewYork if they really want to play out the New York track...