The headphone output also doubles as a digital optical output. (digitaltrends.com)
For those willing to spend the extra dollar, the Roku Ultra offers support for more audio formats, support for Dolby Digital + via HDMI or the additional optical output and a couple of extra remote features over the Premiere +. (pocket-lint.com)
Could you please expand on how well optical output works with your TCL pick and with the LG C7? (thewirecutter.com)