TV in a bar is already an annoyance unless “the big game” is on. Interrupting an annoyance with an intrusion (“hey if you don’t buy these wings you’re practically losing money!”) just won’t engender good will.

I’m not implying this won’t work at all. But not in bars where it wouldn’t already be acceptable to have screens for gambling, OTB or whatever. Unless I am wrong, but I consider myself something of a bar aficionado.