We got our Smart TV from a relatively new shop called EvKur, no, not the second hand shop by the same name.
This place is on Hukemer Cadessi which is opposite the PTT. It has four floors full of new stuff for the home, but the ground floor is given over to tv's, white goods etc. We had shopped around other stores before going there, but when we did, we got ours for less than anywhere else.
It seemed strange that they had no prices on their televisions, only "Taksit". We were surprised that when we asked about a Smart TV, instead of getting out a price list, he went straight to a computer. There the assistant went online and found the cheapest one in Izmir. Two days later it was delivered and installed. Now that was a bargain!!
TC