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Ken Jennings won $2.52 million over six months in 2004, winning 74 games of Jeopardy. Topps will include Jennings in its 2007 Allen & Ginter set. Jennings, who seems to know a little bit about everything, mused about his trading card debut and the authentication process on his blog.

"I'm apparently going to be one of the 'honored champions' in Topps' 2007 line of Allen & Ginter cards. I wonder if there's ever been a game show winner on a baseball card before, or I'm some kind of Jackie Robinson of nerds here," blogs Jennings. "Anyway, I learned a lot about the industry yesterday. I was asked to autograph a small quantity of the cards, but they didn't just send me the cards to sign–someone had to come to my home, an Autograph Verification Representative or some such funny title, and physically watch me sign every card. I guess this keeps a Jason Giambi from having his kids or his driver or a homeless guy or somebody just scrawl something signature-like on every card.

"I had to contribute a 'relic' to Topps as well, snippets of which will somehow be included in select sets as collectibles, I guess. A "relic"? Jeopardy! doesn't really issue uniforms, Topps. I gave them a $20 Costco dress shirt that I undoubtedly wore on-air a few times, since I don't own 75 dress shirts. Boy, what a thrill that'll be for the sports fans."