Thomas Magnum: I bent the firing pin hammering my way out of the storage room.
Selleck must have cringed when he had to say that line, considering he knows guns in real life, and that statement is utterly absurd to anyone who's familiar with a 1911. It is impossible to bend the firing pin in a 1911 no matter how much you hammer on something with it, because it is housed in a hole drilled from the back of the slide through to the breech face (back of the ejection port area). Additionally, it is a spring-loaded floating firing pin, so it has its own "suspension".
So, to bend the firing pin, you'd have to bend the rear portion of the slide, which is nearly an inch thick of 4140 ordnance-grade tool steel. Not only is that impossible by using a gun as a hammer, but a 1911 subjected to enough abuse to bend the rear section of the slide would be "totaled" by default.
Additionally, the firing pin is one of the easiest parts to replace on a 1911; it can be done in less than 30 seconds with no special tools (you just need something like a sharpened pencil, or a toothpick, paper clip, or countless other similar items that can be found around the house, to push the firing pin in while you slide the firing pin retaining plate down with your finger), so it wouldn't have required the services of a gunsmith.