I'm a little annoyed that the Yahoo! TV refresh last night broke my bookmarks. We're luddites who've rejected Digital Cable and On-Screen Guides for the last few years - and Yahoo! TV has been our solution for that. But, oh well. I've got a new TV guide bookmark now, and all better.
On the other hand, I'm a bit impressed and entertained that the TV guide grid uses an AJAX-ian pagination approach like this one.
Of course, on the other other hand, it's pretty slow now. I found that if I scroll down the the bottom of the page, really really fast, everything gradually loads up. That seems somewhat suboptimal.
I'm surprised that the new site breaks old links - seems like having Del.icio.us within the company should underscore the importance of permanent URLs.