A:AnswerI can’t really say how much you will lose with it being that long . But if you don’t use a good one you see snow . As in old TVs . Snow is ok if you want to take a nap .
A:AnswerUnless your LG phone has an HDMI port which I'm guessing it does not no you can not hook your tv up. You would need somthing such as chrome cast to be able to link your tv with your phone.
A:AnswerNot if the TV is not a 4K unit. Regular HDMI will work great. If you are using an antenna, HDMI is not needed at all unless you are connecting a DVD or something.
A:AnswerYou should be able to use the same cables you have been using now.
Unless you buy a TV and have OCD 'most' HDMI cables will work.
HDMI has a standard that it must follow before it can be sold.
A:AnswerIf you aren't using cable or satellite. Then, the only cable to your wall should be the power cable. You will need an HDMI cable if you plan on hooking up a bluray. But that would only go from the bluray player to the tv. Not the wall.
A:AnswerYou may have to purchase a male/female adapter and then connect it to your pin cable, then connect to the tv. A gibit HDMI adapter, also might be helpful.