No technician, I trusted the comments of experts related to the product; They are numerous and complete, they make you want to buy. I do not regret my choice, and thanked all those who take the trouble to help, by their opinion, unskilled people like me. I unpacked my package, connecting the recorder, connected the hard drive that I had read the record and turned on the TV! Everything worked perfectly. I am delighted with this acquisition. At this price, it's a great operation.