Poor products

I purchased a AIM 55inch TV on black Friday. We got a very good deal. The first TV I got didn't connect to the internet so we returned it for a new one. About 2 months later I needed to return the 2nd TV as it had a software malfunction. The 3rd TV I received was an updated version with new software. I have been having issues with this 3rd TV since month 3 of having it. Sometimes it doesn't switch on. HDMI port issues and now I have a dead pixel in the left hand bottom corner. We bought this TV on black Friday and the price we paid was a great saving. But since then this brand has given me nothing but issues. PNP staff cannot give me the same TV of a different brand as there's a huge price difference between the two. I don't feel like I should sacrifice the size of the TV or functionality or quality due to a manufacturing flaw. The TV is a smart TV with my apps on it. I request someone from PNP head office contact me with a solution and AIM should replace my TV with one without me having to pay anything in on it. AIM 55 inch UHD SMART LED TV CZ2055