Trebek is host of one of the longest-running television game shows. (Courtesy Creative Commons)

He is expected to recover in time to film the upcoming 29th season of the trivia game show, which starts in July.

"Trebek is in good spirits and is currently under observation and undergoing further testing," a statement from Sony Television said.

The host, whose reserved, intellectual demeanor was lampooned in a series of "Saturday Night Live" skits featuring Will Ferrell, was treated for a heart attack in 2007.

Reach Executive Producer Dawn Megli here; follow her on Twitter here.