Well, i don't have BitTorrent but i have Ktorrent who is part of my Linux OS installation... in fact, it is very possible that you don't need a torrent client... by example, the internet browser Opera can directly handle .torrent, firefox have a plug-in...
And seriously, you miss a lot... by example, for music, more and more amateur artist ( some are very good ) release via internet, with full album on torrent... it is a cheap way for them to test if their work have some potential since a lot of the big media house will never take the risk to finance and release their job... useful for open source game... by example, http://www.flightgear.org/ who is a flight simulator game... software itself is only 400mb download but whole world scenery are around 12gb... heavy load for FTP server when the game is free...some commercial game company use torrent for release their free demo too...
In fact, in the last few years, some of the previously closed torrent site are opening again but only with legal content... music, open-source software, etc ...
As for the whole episode, it is not yet done... 30 minutes part one is already better that a 10 second trailer !!! And it allow people to forge a idea about what can be the series...