There's examples all over the the place of people using "there's" before a plural noun. In fact, we just gave you one.
A listener named Bill from Kalamazoo recently wrote to us about this. He's noticed all kinds of people, including broadcasters, using "there's" in front of words that refer to multiple things such as "thousands" or "many" instead of using "there are."
He says, "As an old guy, it drives me crazy. Especially when said by a 'professional' who should know better."
Bill, all we can say is guilty as charged.