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Marg Helgenberger Csi 300th Episode

WATCH: Marg Helgenberger Returns To Solve 14-Year-Old Cold Case On 'CSI'

The Huffington Post | HuffPost TV Staff | Posted 10.22.2013 | TV

This Wednesday (Oct. 23 at 10 p.m. ET on CBS), the landmark 300th episode of "CSI" will air, bringing back fan-favorite Marg Helgenberger as Catherine...

Marg Helgenberger Is Heading Back To 'CSI'

Posted 08.21.2013 | TV

Marg Helgenberger is returning to "CSI," TVLine reports. Though it's only for the CBS procedural's landmark 300th episode coming up in Season 14 t...