There are three new PAC ads on YouTube, although I'm not sure if one of them is a TV ad:
-Anti-Trump American Future Fund released a :17 second ad Two Trumps, which features Trump saying perhaps there are two Donald Trumps, then saying I don't think there are two Donald Trumps at the same press conference. I'm not sure if this is a :15 second TV ad or just a web ad.
-Anti-Trump Our Principles PAC released the 1:00 minute Unifier, which details violence at Trump campaign rallies and Trump's campaign manager's alleged assault of a reporter. It ends "Donald Trump is too reckless and dangerous to be President."
-Pro-Kasich New Day for America released the Ohio-specific :30 second Hinge, hitting back on the Trump attack ad on Kasich. It argues that the Trump ad is full of "unhinged, bold-faced lies" because Kasich, among other things, created jobs and cut the state budget.
the link to hinge goes to unifier
Has Romney done anything in Ohio to encourage people here to vote Kasich over Rubio?