Cablecard is only for cable, and only in the US.
No Canadian satellite provider supports other than their box to receive service.
Same for most cable and IPTV providers.
I don't know what Bell/Telus offer for their basic HD box, but Shaw Direct no longer offer a non-DVR HD receiver with component out. Your options with Shaw Direct are the 600 basic receiver (HDMI and composite out), and 630 (DVR, with HDMI, composite, and component).
You would have to hunt for a 605 (630, less HDD and second tuner), or miss channels with a 505 (it does not get the new MPEG4 channels).