LOS ANGELES — As their new 11 p.m. TBS talk show gets ready to roll Monday, Conan O'Brien and his staff have started to learn how the other half lives. After 17 years at NBC, they're adjusting to cable-sized portions. "We have...

Thirty-one lengths. About 248 feet. That's the astonishing distance by which Secretariat won the 1973 Belmont Stakes, a victory so monumental some observers call it the greatest athletic achievement of all time, human or otherwise. But...