Martin A from Cheshire, on the BBC iPlayer: "This is a P2P player that uses your memory, upload/download quota and is working all the time even when you are not using the player. When I uninstalled the BBC iPlayer the associated program Kontiki (kservice.exe) kept using my PC for its own needs until I uninstalled that also. There was no warning that this program was going to take up my bandwidth and upload/download quota" - September 3, 2007. 
 

Note: an interesting discussion on iPlayer's use of P2P at http://forums.vnunet.com/thread.jspa;jsessionid=6hi28xt4pdob?messageID=978648��

And an ISP take on BBC iPlayer's impact on traffic at http://community.plus.net/blog/2008/02/22/will-bbc-iplayer-usage-break-the-internet-the-bandwidth-timebomb/?WT.mc_id=ec_int_200802news&link=iplayertext 

NOTE: On February 4 2009 the Competition Commission blocked the launch of Kangaroo, the joint venture between the BBC, ITV and Channel 4 for video on demand.