If you are building Television-based dashboards, sometimes your users might want to do some form of drill down. The problem is that they can’t interact with the dashboard, and you certainly don’t want their fingers prints on your pristine TVs! If you use QR codes, you can allow your users to pull out a phone, point it to the TV, and have additional information automatically come up on their phone. Simple, easy and effective.
Here is the service that I showcased in the video, but you could use others. This is simply the first one that came up on a google search.
If you’d like to learn more, I’d recommend you go to my learning channel - Off the Charts (with Jeff).