Well.. the title says it all!
I wish it was possible to get a tv listing on iCal but I havent found any. I am going to send a mail to some tv station in quebec to see if they can provide their schedule in xml and I will do the convertion to iCal...

Other than that, any other use for the iCal subscribtion?

I'd recommend you have a look at icalshare (http://www.icalshare.com/)...that place is loaded with useful iCals from around the world, including a few that I publish.