EPGuides.com contains episode lists for over 3500 TV shows. Find out what you’ve missed, plot summaries and guests. Pretty neat resource for telly buffs.
This site contains Episode Lists for over 3500 TV shows. Each list displays only titles and airdates, but in most cases the episode title is a link to the page for that episode at TV.com, where there is more information such as guest stars and a plot summary.