I bought an Insignia 55" 4K TV on February 3 this year.
Pretty good set, nice picture and cheap. I paid $429.
About 2 weeks ago the external sound output to my sound bar stopped working.
Long story short the part is back ordered to 12/31.
According to Geek Squad at Best Buy if they cant fix a T.V. with in 30 days you get a new one.
I took it back yesterday and got a Samsung 55" 4K for an upcharge of $210
I guess you do get what you pay for.