A:AnswerYes. You would likely need a satellite receiver box to get full satellite services and channels (which may be an additional one time or monthly fee from your satellite company)
A:AnswerMake sure that your TV is connected to your cable box via HDMI cord or the regular screw in cord. Then when you set up your TV it will ask you to select outputs that you want to use you would use the outlet that your cable box is connected to and then it should work
A:AnswerIt will work with a digital OTA antenna. (Over the air)
What stations you get are based on distance and barriers that block line of site to towers. There are internets websites that will tell you what stations you should be able to get from your location.