The cards should be available sometime early this year (in other words, soon), and they should work much like the scratch-and-redeem cards you already find at the store. The concept certainly isn't unusual for streaming services (Netflix has had prepaid cards for a while, as well as Hulu), but it's not so common for traditional TV outlets. Now, as channels like HBO Now and Starz move beyond the cable bundle, they're making similar efforts to reach customers directly.