Roku has a problem — its buttons aren’t printing enough money

No, you didn’t suddenly forget how to read: Roku, the streaming box and service company, is worried about how much money its buttons are bringing in. Not because it suddenly started making clicky actuators for other companies to include in their products (what a pivot that would be), but because Roku’s really an advertising company in streamer’s clothing. And it absolutely has prime real estate to sell to streaming services: for a…