Before discussing, how he will be in the TNA we should retrospect, why he will be in TNA? TNA will be losing its TV deal and around the world many had stopped watching it, albeit there's been some exceptional matches in the TNA. It would be a roadkill for Goldberg to sign with TNA. He wouldn't and shouldn't do that. The movie promotion via TNA won't make much difference. Sorry for these comments on TNA it's not ranting seriously, it's just the verity of the facts.
So according to you, exposing Goldberg (and therefore his project) to give or take 300k viewers on weekly, bi weekly or even monthly basis is nothing. A weekly, bi weekly or monthly advertisement for his movie for 300k people - is nothing.
Not to mention the coverage he'll get by dirt sheets and the interviews he's bound to spark through his signing. Not many, mind you, but enough.
You realize that Goldberg is not starring in Star Wars, right? It's a small movie, they likely don't have too much advertising budget.
Not only will Goldberg be exposed to 300k people on multiple occasions, he'll also GET PAID to do it. It won't cost him, or the movie producers, a damn cent.
Even if TNA's audience is a fraction of WWE's, according to you - 300k is better than 0.
You're a smart man.
All Goldberg cares about is pushing this movie. He doesn't care about TNA. Hell, he barely cared about WCW back in the day. He's in it to promote himself and further his movie career. Hey, all fine by me, and you'll bet TNA's fine with it too. That's his side of the deal. TNA's side of the deal is shedding some bucks on signing Goldberg and using him for something. Whether their investment will pay off is a different story. They think they will, just like any business thinks before they invest an x amount into anything. They hope they will. Will it? Who knows. But both sides have their gains. Goldberg's gain is safer than TNA's. He will definitely make more money than he spends and it'll help his movie. TNA's gain is risky but that's just how it is.
Goldberg wins with this, how could it possibly be a trainwreck for him. Even if he sucks balls in TNA and it's a complete joke (big chance), he doesn't give a fuck. TNA's just small enough to not put a dent in his image, and just big enough to help him sell his shitty movie.