A:AnswerA standard WIFI signal in good proximity will work fine. The 3 I have have no problem connecting to my wireless router in another room of the house. The quality of the stream will come down to the quality of you internet service coming into your home.
A:AnswerWhile they both offer 8 gb of internal memory the Fire TV has USB 3.0 and an SD slot for extra storage. Also the Fire TV has an HDMI port, an ethernet port, and an optical audio port for home theater set up. And the biggest difference between the Fire tv and the fire stick is it's Quad core processor and 2 gb of RAM to make it available for 4K streaming. The fire stick is great and they both have the same user interface. The reason for the great success of the fire stick is it's mobility. Very easy to take anywhere with you in hotels, or dorm rooms. If you're looking for something easy and quick the fire stick is probably better for you, but if you want want the 4K and 3D experiences then the Fire TV is right for you.
A:AnswerWatchESPN is an app that is available on the FireStick. As long as you have a valid cable or satellite subscription you can log into with your account and watch all the ESPN has to offer. Doesn't mean you have to have cable tv. Some of the cable internet providers have deals with ESPN to allow their users to use the app to watch TV>
A:AnswerI have my stereo hooked up to my TV with the Fire TV Stick and it works just fine. I used an optical cable. My sound bar, which is hooked up to another TV is installed the same way with the optical cable and that one works fine as well with the FTV Stick.
A:AnswerThe TV most support HDMI connection to get the image and sound properly. This implies that the TV must support other inputs/source. Programming is similar to using a computer. You can pick the app for ESPN and other channels.
This is not going to replace your normal TV with local channels. Not all channels are on this service. Many people combine this with an antenna to get local channels. You just need to change the input.