You can access your recordings either by pressing the Red button on your remote (note: this is different than the record button), OR by pressing the Menu button and navigating to the Recordings option and pressing OK.
It is divided into Recordings (current recordings), To Record (upcoming episodes scheduled to record), and Series Recordings.
Navigate to the show or series you want to view in your Recordings and press OK. Shows that were recorded in the past are greyed out.
Highlight the Play Recording button. Press OK again to view the recording.