Does Optik TV take up my internet speed?

Optik does use bandwidth but Telus typically has overhead on most connections to cover it. The only time you may notice any effect is if you are in a 15mbps DSL connection with little or no extra speed available. On gigabit, you would never even notice any impact Optik would have.

If you have disconnected Optik and are still getting the same speeds, then you can easily determine that Optik is not affecting your speed test results. One thing to keep in mind is that not all speed test sites will be able to work with gigabit connections. I'd recommend trying multiple.