My AV system only has ordinary HDMI inputs. I still get Dolby True HD and DTS HD Master Audio sound when I play discs on a blu-ray player attached directly to the receiver. I can similarly get surround sound by attaching a Fire Stick to another port. The video is sent to the TV through the HDMI output port on the receiver. Right now I get compressed 5.1 sound from OTA broadcasts through an optical cable from the TV to the receiver. Why wouldn't I get lossless sound by connecting a cable from an eARC port on the TV to another ordinary HDMI port on the receiver? The reason I am interested in buying a TV with eARC is that supposedly someday I will be able to get lossless sound from OTA broadcasts when ATSC 3.0 is adopted by broadcasters in my area. Is it far fetched to assume that will happen in the next 10 years?