Freesat have confirmed the 24 Olympic streams will be on channels 151 - 174 (for both SD and HD boxes) and will be added to the EPG on 25th july
http://www.joinfreesat.co.uk/freesat-confirms-channels-for-all-the-bbc-olympic-action/
http://www.freesat.co.uk/how-to/faqs/olympic-games
http://www.joinfreesat.co.uk/freesat-confirms-channels-for-all-the-bbc-olympic-action/
http://www.freesat.co.uk/how-to/faqs/olympic-games