The stamp was put into USPS circulation on Monday, nearly four years after he passed away at age 80, with a book of 20 stamps styled as a full Jeopardy clue board with an image of Trebek.

from its revival in 1984 for 36 years until his death in 2020. In the process, he won 8 Emmy awards for outstanding game show host. Ken Jennings Says Alex Trebek Meant 'Everything' to the Jeopardy!

Nancy Sinatra tweeted: "Part of our lives for decades, he taught us about so many things and now Alex Trebek has gone from us. Sending love to his family and friends. We will miss you, sir.

After 37 seasons of Alex ... got to take his place behind the podium on Monday and shared a special tribute to the late longtime gameshow icon. ET's Denny Directo talks to Matthew Trebek about ...

Honoring a game show legend, current Jeopardy! host Ken Jennings shares a heartfelt tribute to Alex Trebek four years after ...