I've been tinkering with electronics for the better part of 40 years so I am fairly comfortable cracking stuff open to at least take a look. The TV's I have (B5) were fairly easy to get into. I unplugged the TV and left it unplugged for a little bit to let all the capacitors drain, then I put it face down on a towel on the floor, took 6 or so screws off the bottom, 1 off the back, then the back panel just pops off because it's held on with some clips. The WiFi/BT module was easy to identify, it has some shielded chips with a shielded ribbon cord going to it. It's on the bottom right hand side if you're looking at the back. I unplugged both ends of the ribbon cord by pushing the clip holding it in back/up. Obviously try all of this at your own risk if you're going to. If you're used to opening up and messing with electronics, it was not that hard or time consuming.

edit: one thing I will add is that I was extremely careful moving the screen or pushing on it while working on it. I have heard the super-thin OLED panels are easy to crack from just a little bit too much force.