ABC Makes Hit Shows' Current Seasons Available Online

'Tis the season... to catch up with your favorite TV shows. ABC is making holiday TV marathons a little easier by putting the current seasons of its most popular shows online.

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Fans can access all the newest episodes of old and new shows, including Castle, Grey's Anatomy, Nashville, Scandal and Once Upon a Time, through the ABC Player app for the iPod Touch, iPad and iPhone. Episodes will also be available through the TVGuide.com mobile app, which is available for download in the iTunes store. Previously, the network had only made the most recent five episodes of shows' current seasons available in its player.

Here's a full list of the available shows and when they will be offered:

Available Dec. 15 through Jan. 5, 2013:

Castle

Grey's Anatomy

Happy Endings

Nashville

The Neighbors

Available Dec. 18 through Dec. 31:

Once Upon a Time

Revenge

Scandal