i guess you are new in islamabad because none of these shops in blue area I.e Friends Corporation, Hafeez Electronics and Afzal Electronics keep the original. they sell original on demand but are selling import custom tvs with their own shop warranty thats about it.
if you want to buy original with 1 year SAMSUNG PAKISTAN warranty then buy it from a SAMSUNG STORE, just like Sony 
same model if custom import will cost you 10k less and same will cost you 10k more from SAMSUNG or SONY retail shop with Local Nation-wide & International company warranty.
Bear in mind that there are 70% chances that an import tv is not even launched in pakistan or will not be launched so even if you claim shop warranty they wont be able to repair or get needed parts for you.