ABC News’ Michael Falcone, Emily Friedman and Amy Walter report:

Presidential candidate Mitt Romney is going on the air with a television ad in New Hampshire on Tuesday that will take direct aim at President Obama on the same day the president will visit the state to talk about his economic agenda.

It will be his first television commercial of the 2012 presidential campaign.

Romney will preview the ad in an interview with Fox News’ Sean Hannity on Monday night and the ad will be broadcast on New Hampshire television stations the following day.

” I want people to remember that when he was Candidate Obama, that he said he was going to get this economy going, he was going to bring people together, be a real leader for change in America” Romney said in an interview with Hannity that was taped over the weekend and will be broadcast on Monday.

Romney added, “I’m going to run an ad that shows him and the things he said here in New Hampshire in a speech here. The contrast between what he said and what he did is so stark, people will recognize we really do need to have someone new lead this country.  And then I, of course, described why I’m the right person for that responsibility.  So we’ll put the ad up on Tuesday, the very day he comes to New Hampshire.”

This is the first television ad of Romney’s presidential campaign.  The 60-second spot will air on ABC News’ Manchester, N.H. affiliate WMUR-TV.

A source at the television station tells ABC that the spot will run from Nov. 22 through Nov. 27. The ad buy itself — $134,000 — is very modest.  However, it’s clear that the goal of the ad is to drive the discussion, not to try and drive home a campaign message.

A source close to the Romney campaign said that the timing of the ad had been in discussion over the past couple of days.

Following a town hall over the weekend in New Hampshire, Romney hinted that ads might not be far from hitting the airwaves.

“You can expect that we’re getting closer now, and as we get closer we’ll go up on the air,” said Romney in Peterborough, N.H. on Saturday. “This is a calculation of how much money we have to spend and when is the right time to go up but I wouldn’t be expecting to be waiting weeks and weeks. It’s got to happen relatively soon and it’ll happen in the early primary states.”

Camera crews have been spotted filming campaign ads for Romney at events in Dubuque, Iowa and in Peterborough, N.H.