Thanks again Dr. Dave. I guess I was mixing up my bits and bytes!
So I just called Telus and this is still confusing. The woman was very helpful and also contacted here tech support person. She confirmed that my area would have the 15Mbps profile, not the 19.2, but that would mean that I would get 15Mbps (no TV). I quoted your post about needing 19.2 to get 15 and she was very clear that I would get 15Mbps download, but my profile was not the 19.2.
So this is confusing. Somehow, I suspect that again, Telus is confused about their very own service, so I'm not sure what to expect, but I told the woman that when I get it installed, I will see if I have 15Mbps download and she assured me that I would (or near enough).
By way of further comparison, I just downloaded a 91 mb file in 100 seconds on Shaw. So by your formula, I am getting 7.28Mbps now, at noon on a weekday. By that token, I will get much higher speeds with Telus when I am not watching TV and when I am, it will be about what I have now, or still better if I am only watching on HD feed. Of course I might be watching one HD and recording one or even two more HD feeds and that would make my internet slow a lot.
Come to think of it, if I was watching one HD and recording two other HD feeds (which is possible) would that make my internet speed go to zero? Not sure how that would work.