RE: 1973 challenger history question
The above is accurate as I've seen over the years with the exception that the 68 GTS "customized" was a 340 car - though most thought it was a 383. It was recently discovered in 2000, restored and shown at the Carlisle show.
I'm also old enough I actually watched the show, then re-runs later. The Chally was Mannix's last mopar. He drove a Camaro in the one episode he did a cameo in on Diagnosis Murder as well.