Dragon Slayer Achievement
Watch 5 episodes of Dragons' Den
Search for Dragon’s Den and watch five episodes. Each episode is about 45 minutes. You can have the app open in snap mode, or just let an episode run while you’re doing other things.
If you’re able to find a preview (because they tend to come and go) you can just watch/replay that five times. Previews are usually around a minute to a minute and a half long, so that can save you a heck of a lot of time.