8Connecting an AV receiver or digital sound barYou can enjoy Dolby Digital multichannel sound from your TCL • Roku TV if you connect adigital amplifier in either of two ways: Digital optical audio out (SPDIF) – Connect a TOSLINK optical cable from the TV to theOptical input on your receiver or sound bar. HDMI ARC – Connect an HDMI cable from the HDMI (ARC) connector to the HDMIinput on your receiver or sound bar. This connection uses the Audio Return Channel(ARC) feature of the HDMI specification to output sound from the TV to a compatibledevice. To use this feature, you must configure the TV to enable HDMI ARC, asexplained in “Enabling HDMI ARC” on page 58.Preparing your TCL • Roku TV for Internet connectivityIf you want to connect your TV to the Internet to watch streaming content, you must connect using awireless modem/router or a wireless access point. The TV connects through a built-in wireless LANadapter. The TV does not support a wired connection or the use of a USB network adapter.We recommend that your wireless connection support the IEEE 802.11b/g/n specification for the bestexperience.AC powerPlug your TV into a power outlet. You can tell that the TV has power because the status light on thefront of the TV lights up.“TCL • Roku TV status light” on page 28 explains how the status indicator shows what is happening withthe TV.