Isn't this against the TOU for Google Voice? I would, personally, go with another service for the number (Twilio?) and setup a service there? Maybe it's time for Google Voice for Business?

Also, what happens for the tons of viewers watching the reruns in the next decade (or more?) Would the number for Ghostbusters suddenly be the number for a character on Glee? (Sure I guess that's no different than now, maybe I'm just thinking too much into this.)