Absolutely disgusting behaviour from an official Samsung technician who swipes a exacto knife on a customers TV to void his warrenty.
I woke up from a nap, watch the first minute of this and said to myself. Damn, Louis Rossmann needs to see this, then the chad appeared on the screen like a genie
BBB is garbage and never does anything. You might try small claims. It does not cost much to file and you don’t need a lawyer, just show up with as much documentation as you can.