Cool idea. Nice to see it got implemented so quickly too.
On the not-so-nice side, it would be cool to have a general way of referencing TV programs by permalinks, that would be Tivo-independent…
Like RSS and subscriptions, you don’t want to put one link per “standard” (Tivo, MS MCE,…) when you link to a TV program.
We have imdb for movies, amazon for books…
A more semantic web is approaching (slowly) and the ones holding the data are trying to take a piece of it 😉