Clint Eastwood speech with empty chair upstages Mitt Romney at GOP conventionPolitical conventions are TV shows, only TV shows, and the one from Tampa last night starred a silver-maned screen icon named Clint Eastwood who drifted wildly off-script, addressed an empty chair, put words in the mouth of an invisible "president" that were vaguely — no, very distinctly — scatological, rambled for eleven minutes, drove event organizers to drink and in the process totally, irrevocably heisted the entire week.It doesn't matter what stripe your politics are, or whether you thought last night was a victory or disaster, Eastwood stole the night. He stole it with the expertise and facility of a veteran actor who knew exactly what he was doing — stealing a scene, and stealing it with utter conviction.There is but one thing anyone will remember from this week — one thing and one thing only: The sight of Dirty Harry addressing an empty chair.Let the big minds address whether this remarkable TV moment was good or bad for the Republican ticket and they already have: Bob Schieffer last night said it was a political disaster, shifting attention from the candidate to a loopy actor addressing an empty chair. His colleague Norah O'Donnell said Friday morning that it was the "not good, the bad and the very ugly.""But wait! What about us? The viewer — the ones sitting at home, drifting off to sleep, wondering when we'd hear yet another speaker talk about yet another mother who had to drive 130 miles to work, while the kids at home were burning the pancakes? The ones watching Taylor Hicks and saying "I voted for THAT guy!?" TAMPA -- Hollywood heavyweight Clint Eastwood made an unscheduled appearance on the GOP convention stage before a welcoming audience Thursday night ahead of Mitt Romney's acceptance speech for his party's presidential nomination."I think it may be time for somebody else to come along and solve the problem," said Eastwood, 82, who already endorsed Romney this month at a campaign fundraiser in Idaho. "When someone does not do the job, you have got to let them go."Eastwood remarks were rambling at times and critical of President Obama and Vice President Biden, whom he described as "a kind of grin with a body behind it."