I cannot recommend this service enough. I had debated for a few months whether to have my tv professional calibrated and after doing some research contacted HDTVTest and I'm extremely pleased with the results. Vincent was punctual, polite and friendly, answered all my questions and talked me through the calibration. Nothing was too much trouble for him and he calibrated the 2D picture for freeview, blu ray, ultra hd blu ray and 3D blu ray. The results between pre and post calibration are night and day and I will definitely be using Vincent for any future TV calibrations I need.