Yes we brought in a small flat screen TV into Turkey(undeclared) in our Suitcase. Our main one came in through the shippers was 18 months old and we had to pay the banderol tax on it (not sure how much as it was included in the overall customs tax, banderol tax and back hander we had to pay to get it all out of customs.
We were not told by our shippers that you could not import brand new furniture so got stung for that as well.
My advice if shipping furniture through Izmir/cCesme is to allow £800 to get it all cleared and if its less you are one of the lucky ones.
Cheers
Fi