Sadly majority of the people would rather the convenience, or just order the physical copies nowadays.
I've found the Netflix has to state the higher res. content or it's all just low res. file same with Amazon Prime. Both services are very limited on content in my opinion.
Have bypassed such hassle using my Xbox1 as streamer by running my Xbox at 1080p.
If you run Netflix from your blueray to T.V. or a similar means. Set the streaming device to output 1080 4K etc.
Don't think a smart T.V. will upconvert alone though.
The V.O.D. should have selector in the menu screen for resolution. of selected film. I have a Shaw HD box as well. have you checked cable box's settings?