OK this has been a long time coming (and us PS3 owners in Europe are going to get it before some others) but this engadget link has a good informative videoclip showing some of the capabilities.

I can see my 9 year old is going to get very excited about this!!!

http://www.engadget.com/2008/02/14/sonys-playtv-for-ps3-gets-shown-off-still-only-for-europe/

DVB is quite the standard in Europe, and that could be a reason it got the tuner. Now if only ATSC gets it's PS3 DVR accessory.

http://gizmodo.com/360788/playstation-3-playtv-recordings-can-be-copied-anywhere