Listed below are many of the links referenced in ‘Experiencing Change’ plus a number of others. I obviously cannot be responsible for the content of these sites, but despite their often unconventional, or even controversial views, you should not find them offensive.  

UK Cable Telecommunications

A fairly detailed history of Ofcom and its telecommunications regulator predecessor, Oftel, can be found here:

http://www.ofcom.org.uk/static/archive/Oftel/about/history.htm

A short history of Canadian cable TV can be found in the online Canadian Encyclopaedia:

http://www.thecanadianencyclopedia.com/index.cfm?PgNm=TCE&Params=A1ARTA0001150

The US experience is noted at the online Museum of Broadcast Communications:

http://www.museum.tv/archives/etv/U/htmlU/unitedstatesc/unitedstatesc.htm

Mercury and BT duopoly:

http://www.ofcom.org.uk/consult/condocs/telecoms_review1/telecoms_review/annexg/