Also so that any electronics don't get fried. Wi-fi board borking itself would be good, but I'd be worried about it affecting something else down the line.
Unlikely, as Wi-Fi is flea power (not high enough to do damage). Moreover, Wi-Fi chips have an inbuilt power limit so as to comply with spectrum management regulations.
Anyway, why wouldn't you want to fry the Wi-Fi chip if possible, that'd solve everything? If I had that problem I'd simply stuff the chip or short out its RF output (bridge solder across its antenna pins).
There are multiple ways of fucking the chip, likely the easiest is shorting B+ to the high side of its antenna pins (that'll likely do the trick). Another method is to hold the tip of a hot soldiering iron on the center of the chip until it fails.
Of course, you shouldn't do this unless you know what you are doing. The Wi-Fi chip may also control Bluetooth so if you still want that risky comms pathway then consult the chip's datasheet first.
The TV might throw an conniption over loss of this critical functionality.