Beyond the standard celebrity guests, several notable people with secrets appeared, including Colonel Harland Sanders ("I started my restaurant with my first Social Security check"), drummer Pete Best ("I used to be one of The Beatles"), and a 95-year-old man, Samuel J. Seymour, who was the last surviving eyewitness to Abraham Lincoln's assassination (he was five years old at the time). In 1958, an episode devoted to the theme of "teenage appreciation" was the show's answer to media reports of teenage delinquency, and featured nine teenagers of unusual accomplishment including the then 15-year-old chess champion Bobby Fischer, 16-year-old pop star Paul Anka, and 19-year-old college basketball star Oscar Robertson. Sgt. Ira Jones, who served as Elvis Presley's First Sergeant in Germany, made an appearance. Scientist Philo T. Farnsworth, the inventor of electronic television, made his only televised appearance as a contestant on the show.