“Does this TV has a digital tuner included in case I want to use an Over The Air Antenna?Is it Energy Star Certified? Do included a Headphone Jack? I am curious to know if this TV set is included the feature of Digital Tuner ,in case I cut the cable services & use Over The Air Antenna. In the specification list don't mention that. Also; if is Energy Star Certified & if is included a Headphone Jack in case I would like to use a Headphone? Finally how is the sound works? Most of this new TVs, the sound is not so great, can't barely heard the voices & sound from the programs & movies, one has to raise the volume all the way up to almost 80 level.”