Boarding in Madrid was among the worst. Not the worst, but pretty bad. Cabin crew was very professional and friendly, as usual, I might add. Somebody needs to adjust the temperature in the cabin (i.e. too hot) and also the ventilation (there was none until arrival). Entertainment console didn't work (not the first time I have reported this incidence). Overall, TK is still one of my favorite airlines because of Istanbul and the lounge in Istanbul.