Manic!: thanks for your input......
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When I contacted Shaw (prior to posting on here), all he said was it's your TV setting. I know what my TV settings were on, and I know they were on the correct settings. So I just gave up on him.
It's fixed now, I dunno what happened in the first place, but I went into the DT menu and played around with the output settings. I use hdmi cables with my current setup, running it to receiver, and then receiver to TV.
I just can't live without HD anymore. I rather not watch TV than watching it in SD =P