The streaming TV wars are over before they've even begun, according to IAC Chariman Barry Diller.

Thanks to Netflix's massive head start and nearly 150 million subscribers, it's unlikely that any of the competing services will be able to catch up, Diller said in an interview Wednesday with CNBC from the Allen & Co. Sun Valley Conference.

"No one is going to compete with Netflix in gross subscribers," Diller said. "I believe they have won the game...There's nothing I can see that's going to dislodge them."

AT&T, NBCUniversal and Disney all plan to launch their own streaming services over the next several months. And they're making moves ahead of those launches to dislodge Netflix's advantage by taking away some of its most popular shows and movies.