A:AnswerI did not because I hooked mine to the cable box which had an HDMI wire. It was a simple "plug and play" (after setting up TV) which was not difficult.
A:AnswerThe coaxial cable from the cable box plugs right into the TV.
That’s the only connection you need to get picture and sound.
I just installed this model TV at a assisted living home for my wife’s Aunt yesterday. (Picture without cable box)
A:AnswerPriceL - Just want to let you know you were incorrect. The TV does auto power itself back on in the event of a power outage and power restores. Fortunately I didn't have to bother trying to set this feature to work by going into the service menu of the tv. Been using it the last 2 days and very happy with it. I calibrated the set some to suit the video it pushes out with the rest of my hardware. Testing well and as planned for my upright arcade cabinet project and will be perfect! Good buy too for just $110 shipped to my door. Hope this helps others.