A:AnswerHello, this unit has 2 HDMI, 1 USB, and 1 Component port for external devices, I have also attached a link below to available Smart TV applications.
http://www.samsung.com/us/appstore?redir=apps
^Britt
A:AnswerNo, you do not need any cables if you don’t want. The only cable you need is the power cable (which is included). From there you can use the smart hub apps like Hulu, Netflix, Sling, etc. to stream shows. Side note: those apps require an account and you need a user id and password to login. You also need a wifi network as well. Hope this helps!
A:AnswerHi MandyJo, we understand your concerns with the TV. Please fill out the form below and one of our social media specialists would be happy to assist you. http://smsn.us/SamsungSupportUSA and we will respond accordingly. ^Britt