The same way you would with a dumb TV. Connect a computer, game console, flash drive, DVD player, etc. It differs from built in services because these TVs collect a truly unparalleled amount of data on you. Harmless, until a) bad actors get hold of that information—you might not care if Roku knows everything about you including payment info, but some russian hacker is a different story—or b) the increasing power that the advertising industry holds over our society turns Fifteen Million Merits into a documentary