Catch the “live” airing of The Mentalist on CBS at 10 PM EST (as of July, 2010). Check your local listings for changes to the schedule. If you have a difficult time catching the premiere episode, you also have the option of setting a Digital Video Recorder (DVR) to tape the episodes on its hard drive. A DVR can be purchased through your local cable provider.
Watch full episodes of The Mentalist online. CBS has an archive of past episodes that streams live from their website. Episodes on the website are commercial free, with the exception of a few short ads, and are of no cost to the viewer. In addition, other online websites such as Hulu or CastTV have multiple seasons and episodes also free of charge.
Rent or buy episodes from outside vendors, such as iTunes, Netflix, Amazon or Blockbuster. Depending on the vendor you can purchase full seasons or individual episodes. If you decide to purchase the episodes, you can re-watch them at your convenience.