I've been playing with my new Toshiba 50HM66 Tv with built in QAM tuner.
Running cable into the tv and running a channel scan I found these channels here in London Ontario on Rogers Cable.
No scrambling. No cable box needed.

DIGITAL QAM TUNER CLEAR CHANNELS
The [100] button is the dash when typing in the channel

STATION Call lettrsCable Equivalent
71-4 CTV CKY109
71-8Punch MuchPUNCH707
75-1Sportsnet East404
75-2CBC VancouverCBUT132
75-6CBC Nfld CBNT124
75-9Sportsnet West 405
75-10Sportsnet Pacific406
76-1CityTV VancouverCITYV135
76-2Global BC CHAN119
76-3CTV ATV MaritimesATV105
76-6ASN Maritimes ASN 113
76-7 Global MaritimesCIHF114
76-8CTV Vancouver CIVT 111
76-11Miracle -ReligiousMRCLE397
77-15NFL Sunday ticket preview
79-11BET BET709
82-5Viewers Choice Preview
82-11Rogers Personal TV Preview
83-2TV5 non english
84-41CLT Canadian Learning TVCLT249
85-3Rogers Personal TV Preview
85-11STAR STAR278
88-XXOnDemand Streamincludes MTV on demand, Movie Network, Rogers,
90-XXOnDemand StreamAnime Network on Demand etc.
92-XXOnDemand StreamWatch what others are watching.
101-2MyTV Buffallo WNYO167
131-2CBC Winnipeg CBWT130
131-9CityTV Calgary CITYC140
132-1CH Montreal CJNT103
132-2CBC East Coast CBHT125