Guests of the Marriott hotel chain in the United States will soon be able to use their home Netflix accounts on the Internet-connected television in their rooms. Following tests earlier this year, the hotel has adapted the Netflix app so that users only have to log in once, with their account details wiped from the app at checkout. Six hotels will get the app initially, expanding to 100 properties by the end of this year, and to most Marriott locations before the end of next year.