I wouldn't even bother with the 1 hour thing. Get straight onto your CBT. It's designed for people with no prior knowledge. I, like many others here, had our first experience of riding a bike on the CBT. I'd been on a bike a couple of times as pillion, but never actually rode one until I did my CBT.
I was nervous (shaking like a dog ******* razor blades comes to mind) at the very start of the day, wondering how things would go and what not. By the end of the day, I'd had a great, albeit cold, ride. From there, within a week, I was on my DAS, and after a few weeks, I had my licence and first bike. Best decision I ever made.