TCL Roku TV Not Enabling ARC
I'm trying to connect a Vizio V-Series soundbar to a TCL Roku TV (Model 55s435)
I've connected the soundbar to HDMI 4 (Arc) on the tv. I have the audio set to Auto (I've also tried with setting it to ARC (HDMI 4)). As I understand it, I need to enable the ARC setting by going to Settings > System > Control Other Devices (CEC) and enable the ARC setting. However, on my tv, there is no ARC setting under the CEC menu. I only have 1-touch play and System Standby.
The soundbar is powered on, and connected, then goes into search mode for the input. If I set the soundbar input to HDMI ARC, I get nothing from the speaker. When I go to the audio output settings on the TCL Roku TV, it says that the ARC (HDMI 4) is inactive and System Audio Control is inactive.
This seems like an issue with my settings on the TV, but I can't find any details on other places to look to set this up. If you have any suggestions on where to go next, I'd greatly appreciate it.