Hisense USA review: Hisense warranty/customer service/will not replace/refund broken tv

I'll make this as short as possible. We have a Hisense 85 inch Q7 series mini-LED Qled television. We bought it from Best Buy August 28th of last year (2025). it worked fine and we were very pleased with it until this past April (less than a year after purchase), when it began to have some issues. Hisense says they warranty their tv for one year
The TV shut down randomly for no reason, and the HDMI ports would go out randomly. I got on the live chat with a Hisense rep twice within a month, and both time I was told to unplug the TV, hold down the power button to "drain" any remaining electricity (yep, that's what they said),and upon plugging the TV back in both times, everything worked fine again.
The THIRD time the HDMI ports suddenly shut down (soundbar and DVD player both plugged in) I called again, and the rep said because this is reoccurring problem to do a factory reset. This of course makes the TV as if it just came out of the box, so I had to reinstall the apps as well as sign back into everything. This solved the problem...for a couple of days.
The HDMI ports went back out a couple of days later, and once during those 48 hours the TV powered off for no reason. I called Hisense, got a live person on the phone (YAY!), and they said they would send out a tech from one of the TV repair companies they have a contract with. Repairman came in, replaced the mainboard, left, and yep, two days later the HDMI ports went out again. Called Hisense, they told me to do another factory reset (nope), and I told them I want either a refund or a replacement since this has happened too many times. Rep said no, they have to try again with a repairman. I DO NOT want this TV "fixed" but I have no choice to wait for another repairman coming tomorrow.
So basically, you get a Hisense, you're stuck with it. They will send someone to "fix" it, and if it isn't fixed, they will just send another tech.