EvokeTV.com provides TV listings for your area in a simple, easy to read, Ajax-enabled interface. There are some powerful additional features which you get by registering -

1) An RSS feed of your latest ratings,
2) A custom show listing page based on your prior ratings
3) A Javascript “Share Ratings” setup for dropping into your blog
4) A Konfabulator Widget
5) Create live bookmarks in Firefox of your favorite shows
6) Subscribe to an iCal feed displaying favorite shows in calendar

Most importantly Internet Explorer is not fully supported during the Beta.