BuddyTV Guide - "Why try the others?! BuddyTV Guide is the top rated TV guide application in the iTunes Store.
tvcmd - tvcmd is a command line interface (CLI) to keep track of tv shows and episodes. It has the functionality of myepisodes.com followmy.tv or mytvshows.org but for the command line, allowing greater flexibility like automatic torrent urls.
TV Show Tracker - Manage your TV shows on phone or tablet - seasons, details, casts and much more!
TV Calendar - Track an unlimited amount of TV shows with PogDesign's TV Calendar.
DroidShows - TV series browser and tracker
TVGuide.com - Download the app USA Today calls “invaluable” and Time lists as one of 50 Must-Have Apps.