Cardinals broadcaster John Rooney is in Houston getting ready for the series against the Astros.

Warren Buffet’s Berkshire Hathaway takes a stake in the company that owns the Post Dispatch. Jon Friedman from MarketWatch.com details what it means for the paper.

John Lakey, Director of the James S. McDonnell Planetarium, joins Mark to preview this evening’s extremely rare Transit of Venus.

Butler County Coroner Jim Akers joins Mark to detail the dangerous “Ghost Train” fad that resulted in the death of two Poplar Bluff girls.

Joey Berlin, president of the Broadcast Television Journalists Association, breaks down the nominations for the Critics Choice Television Awards with Mark.