Hi Chris. Welcome to justanswer.
Connect the HDMI cable to the tv and Panasonic audio system
Do you still require assistance Chris?
I will guide you through. This was the first step.
Now turn on the audio system and tv.
Press Input repeatedly to select the source.
Now leave it there and adjust the volume.
Do you have optical digital audio cable or AUX cable?
Then your tv may not be compatible with the audio system. Your tv does not have Bluetooth, right?
Please rate the chat POSITIVELY so that I can get credited for my services. You need to click the 5 stars present on the upper panel. Thanks